Errata
The errata list is a list of errors and their corrections that were found after the product was released.
The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.
Color Key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update
Version | Location | Description | Submitted by | Date submitted |
---|---|---|---|---|
Printed | Page 4 First sentence of the second paragraph |
In the sentence "Here are two time graphs showing a companies profits for six months," the word "companies" should be "company's." "Companies" is the plural form of "company," whereas "company's" is the possessive form of company, which is why "company's" is the correct spelling. |
Dan Tinsley | May 16, 2022 |
Printed | Page 6 SYP description of 2nd chart |
What's really going on might depend on something implicit in the context of the chart. For example, profit relative to a margin purchase, but showing the actual profits of the company, might easily justify a non-zero baseline. You've created the misleading impression that a non-zero baseline would be misleading. |
Anonymous | Sep 06, 2010 |
Page 7 2nd paragraph |
On page 7 where it shows the first pie chart of Manic Mango it says: |
Anonymous | Mar 12, 2013 | |
Printed | Page 16 Sharpen your pencil solution |
In 2006 the Sports genre sold 15000 (according with the graph) instead of 14000, and so the strategy genre didn't sell more units than any other genre. |
Hugo Juarez Corr | Dec 19, 2010 |
Printed | Page 23 The second sentence under the first question |
Under the first question "So is a histogram basically for grouped numeric data?" the word "its" in the second sentence of the answer should be "it's." |
Dan Tinsley | May 19, 2022 |
Printed | Page 26 Small Diagram below the 6th paragraph. |
The scale on the number line reads "100 200 300". It *should* read "1 2 3" |
Anonymous | Feb 09, 2012 |
Printed | Page 28 Histogram |
The legend reads "Represents 1000 Days" but it *should* reads "Represents 1000 Hours" |
Anonymous | Feb 09, 2012 |
Printed | Page 33 Graph Label |
The graph "Hours Spent Gaming Per Day", has a label - "Box" represents 1000 Days. I think it should be 1000 Players. We just dont have data for Days. |
Ashutosh Kar | Feb 20, 2013 |
Page 61 Data sets on page |
The data set on page 61 for the ages of the students in the Kung Fu class don't match up with the ages listed for these students on pages 55 and 56. |
Anonymous | Mar 07, 2011 | |
Printed | Page 80 Part b, lower right of page |
$10,000 x 1.1 should be $11,000 instead of $12,000 |
Anonymous | Dec 02, 2010 |
Printed | Page 89 second data set |
In my edition of the book, the second data set is missing entirely. There is just blank space where it should appear. Using the chart to the right, I can figure out what the data should be, but I'd rather see it printed there. :) |
Anonymous | Jul 31, 2012 |
Printed | Page 96 Item 3. |
In the Exercise Solution on page 96, the answer to the question What's the interquartile range? Is described as the lower BOUND wubtreacted crom the upper BOUND. The next paragraph's formula reflects Interquartile range = upper BOUND - lower BOUND |
Anonymous | Dec 31, 2009 |
Printed | Page 113 First paragraph under the Variance equation |
The second sentence is incomplete, since it's missing the word "a" in a key area. The sentence ends with "[...] and there's less of a chance you'll make mistake," however it should be "[...] and there's less of a chance you'll make a mistake." |
Dan Tinsley | May 29, 2022 |
Printed | Page 116 Solution for player 3 |
In the key to the exercise "Be the Coach Solution", the mean of 11 listed for Player 3 is inaccurate. It should be 10 (as indicated in the exercise introduction) : |
Yvan Bamps | Jul 22, 2009 |
Printed | Page 143 TANDQ 3rd ans. |
The return on an improbable investment might be qualitatively different (apart from the fact that expected value is inappropriate for extremely-low-probability events). Take, for example, the Hail-Mary pass. |
Anonymous | Sep 06, 2010 |
Printed | Page 154 Left comment next to Venn diagram |
Key to exercise lists 50 as the total number of sport lovers, it is 60. 16 + 16+ 28 =60 |
Yvan Bamps | Jul 23, 2009 |
Printed | Page 178 In the second "Vital Statistics" |
The text says "n events A1 to An", the formula uses A and A'. |
Benjamin Poulain | Apr 04, 2009 |
Printed | Page 181,182 Venn diagram image with think bubble |
The Venn diagram used doesn't match/represent the content and/or the think bubble. They need to be flipped. Image on page 181 should go to page 182 and vice versa. |
Gowtham Raj | Feb 03, 2020 |
Printed | Page 184 TANDQ 3rd answer |
It is a mischaracterization of independence that two spins of a wheel do not influence one another. You'd have to qualify the wheel as fair and fairly used; two spins, or even only one of them, might be subject to an unfair, perhaps common, influence. It would be possible to toss a fair coin unfairly, so as to cause it to always land heads, and if a coin lands heads the first time, since it is possible for a coin to be unfair, it is actually more likely (difficult to quantify, but there must be research in this area) for it to land heads the next time. Also, a baseball player's batting average tends to conceal streakiness; a hit one time makes a hit the next time more likely, but not necessarily because of any influence of one at-bat on the next. |
Anonymous | Sep 06, 2010 |
Printed | Page 185 Five Minute Mystery |
The problem states that there are 96 people questioned, and that 32 go to yoga (Y) and 72 go swimming (S). 24 people are exceptionally eager and go to both (B). |
Anonymous | Sep 04, 2011 |
Printed | Page 201 Middle of page |
The sentence ending with "...at a glance what out gain will be." should read "...at a glance what the gain will be." |
Anonymous | Dec 25, 2010 |
Page 221 last table at bottom |
P(W = 4) has to be 0.09 instead of 0.18 |
Anonymous | Jul 11, 2012 | |
Printed | Page 236 In the table |
In the table, the expression for E(X^2) and the second expression for Var(X) are both correct, but I cannot see how to get them from anything in the text up to that point. I think you should add an explanation of why those 2 are correct. |
Anonymous | Aug 29, 2012 |
244 After the question |
Omits to assume that you get your initial bet back, which makes people calculate assuming x=3000 |
jonathanlim | Aug 10, 2012 | |
Printed | Page 256 Answer to exercise question 3 |
The correct number of arrangements is: |
Anonymous | May 17, 2019 |
Printed | Page 256 Answer to exercise question 3 |
I believe the "error" posted by Anonymous for this page is incorrect. Anonymous stated: |
Richard Mechaber | May 25, 2020 |
Printed | Page 259 top-right |
replace: |
Jonathan Schneider | Mar 09, 2010 |
Printed | Page 264 bottom half |
Woah! |
Anonymous | Feb 16, 2012 |
Printed | Page 265 all of it |
This page also (just as was true for 264) is a bit too tough. |
Anonymous | Feb 16, 2012 |
272 very last calculation on page |
It says "We can add these probabilities because they're independent." I think it should say "We can add these probabilities because they're mutually exclusive." |
Kathy W. | May 11, 2009 | |
Printed | Page 272 top of page and also bottom calcs |
trouble number #1: It is confusing at best and misleading at worst to set things up this way. First of all, the whole example seems to be against the grain of what was taught in previous expectation value sections, e.g., expectations of winnings at Fat Dan's Casino. |
Anonymous | Feb 16, 2012 |
Page 278 2nd from the buttom up |
In my opinion, the sentence printed in bold letters |
Anonymous | Apr 16, 2014 | |
Printed | Page 280 4th and 5th paragraphs |
I believe that the notations and words are so close to one another that confusion is hard to avoid. |
Anonymous | Feb 24, 2012 |
Printed, PDF | Page 280ff The tables shown |
The tables claim that x(P(X) ≤ x) is equal to the sum of x(P(X) = x) - which it isn't. |
Anonymous | May 04, 2017 |
Printed, PDF, O'Reilly learning platform | Page 280 Table |
The fourth column of the table has an incorrect header. It should be ΣxP(X=x) instead of xP(X<=x). |
Anonymous | May 13, 2024 |
Printed | Page 281 top two paragra |
The following may be perfectly correct, but the book is making essentially the same error that other books make: you're not making the concepts clear and obvious enough |
Anonymous | Feb 24, 2012 |
Printed, PDF, O'Reilly learning platform | Page 281, 282 Exercise table |
In page 281, the fourth column of the table in the "sharpen your pencil" exercise has an incorrect header. It should be Σx^2P(X=x) instead of x^2P(X<=x). |
Anonymous | May 13, 2024 |
Printed, PDF, O'Reilly learning platform | Page 283 2nd paragraph, graph, and 3rd paragraph. |
The text on pages 280, 281 and 283 uses P(X<=x) to imply the running total of P(X=x). While in fact ΣP(X=x) is equal to P(X<=x), this is not true for ΣxP(X=x) and Σx^2P(X=x). Meaning, ΣxP(X=x) != xP(X<=x) and Σx^2P(X=x) != x^2P(X<=x). |
Anonymous | May 13, 2024 |
Printed | Page 293 bottom of the page |
3!/(3-1)*0.25*0.5625 OK |
Anonymous | Sep 15, 2009 |
Printed | Page 313 Combine Poisson Variables section |
In order for the following relations to be true: |
Anonymous | Sep 21, 2008 |
Printed | Page 313 First equation on page |
The probability for X and Y is listed as: |
mudphone | Jun 18, 2009 |
Page 313 First paragraph |
Combine Poisson variables |
Aditya Liviandi | Jan 25, 2011 | |
Other Digital Version | 315 Top |
Within the table: |
Peter Duggan | Oct 08, 2021 |
Page 322 First probability X=0 |
In Chapter 7 page 322 , the solution for the long exercise contains the probability where X=0 which means that "without throwing any ball we can knock the pins". It didn't seem logical. |
Anonymous | Oct 08, 2021 | |
Printed | Page 343 top paragraph |
variance cannot have same units as the quantity itself. |
Anonymous | Feb 29, 2012 |
Printed | Page 366 Solution #4 |
Solution #4 "Var(X + Y) = Var(X) + Var)(Y)" should be "Var(X - Y) = Var(X) + Var)(Y)" |
Anonymous | Jan 15, 2010 |
Printed | Page 379 Top of page |
"...of an sdult is..." -> "...of an adult is..." |
William Reardon | Aug 04, 2013 |
Printed | Page 380 The third sentence of the Exercise question |
At the top of the page, the sentence "Assume the weight of an sdult is distributed as N(180, 625)" should be "Assume the weight of an adult is distributed as N(180, 625)." The word "adult" was misspelled as "sdult" similar to on Page 379, which was already mentioned by someone else. |
Dan Tinsley | Jun 15, 2022 |
409 1st column, 1st and 2nd rows |
Under both "X+Y" and "X-Y", the "N" for normal distribution is missing in Y ~ N ( mu_y , sigma^2_y ) |
Kathy Wolf | Jul 25, 2009 | |
411 next to last row, last column |
In the last column, under "Condition" it lists npq > 5 as the 2nd condition, when it should just be nq > 5. |
Kathy Wolf | Jul 25, 2009 | |
Printed | Page 429 The final sentence of the page |
In the final sentence, the word "led" is misspelled as "lead." The correct sentence should be: "Any or all of these factors could have led to the sample being misleading, which in turn led to the wrong decision being made." |
Dan Tinsley | Jun 18, 2022 |
Printed | Page 430 In the text at the bottom of the page pointing to the image |
In the text pointing at the gumballs image, the word "sampling" is misspelled as "samping." |
Dan Tinsley | Jun 18, 2022 |
Printed | Page 432 Third sentence under the "We can use stratified sampling..." header |
In the location specified, the word "characteristics" is misspelled as "charateristics." |
Dan Tinsley | Jun 18, 2022 |
Printed | Page 435 First paragraph, second sentence |
I have not heard of "whilte" chocolate. Could it be white chocolate, instead? |
Anonymous | Dec 27, 2017 |
Printed | Page 436 The second sentence at the top of the page |
Just like on page 435, which was already noted by another reader, the word "white" is misspelled as "whilte" in the second sentence of the page. |
Dan Tinsley | Jun 18, 2022 |
466 2nd paragraph of middle column under "there are no dumb questions" |
It says "The expectation of the sampling population of proportions..." I believe it should say "The expectation of the sampling distribution of proportions..." |
Anonymous | Jun 04, 2009 | |
Printed | Page 468 Entire page |
The original question is: |
Anonymous | Mar 10, 2015 |
Printed | Page 471 Step number 3, near the bottom of the page |
In the text that isn't bolded in Step #3, there is a superfluous comma near the end of the sentence. Instead of "in this case the, packets of gumballs," the sentence should end with "in this case the packets of gumballs." |
Daniel Tinsley | Jun 22, 2022 |
Printed | Page 482 Under the Binomial Distribution section |
The section on the binomial distribution gives the incorrect distribution of X-bar. This section confuses the concept of the number of Bernoulli trials parameterizing X ~ B(n, p) with the number of independent observations of X (AKA sample size) parameterizing our distribution of X-bar. It uses the variable n to refer to both concepts, laying out the very specific case where the number of trials parameterizing the distribution of X is equal to the sample size parameterizing the distribution of X-bar, and presents it as the general case. |
James | May 23, 2021 |
507 Answer to last question in first column |
The answer is about the difference between the terms confidence level and confidence interval. The first sentence should read "The confidence level is the probability that your statistic is contained within the confidence interval," instead of "the confidence interval..." |
Kathy Wolf | Jun 19, 2009 | |
Printed | Page 507 3rd answer |
It should read "A: The confidence level is the probability", not "The confidence interval". |
Anonymous | Mar 21, 2010 |
Printed | Page 507 First question |
In the question, there is a small placeholder box where there should be a variable symbol instead, which I believe is supposed to be x bar. |
Dan Tinsley | Jun 26, 2022 |
Printed | Page 510 First sentence of second paragraph |
In the sentence noted, the word "it's" should be "its." |
Dan Tinsley | Jun 26, 2022 |
Printed | Page 511 2nd paragraph |
The expectation of X bar is mu, and the standard deviation is sigma/n |
Anonymous | Jul 08, 2009 |
Printed | Page 511 Second sentence of first paragraph |
In the sentence noted, the word "the" is repeated twice in a row, but should only be written once. |
Dan Tinsley | Jun 26, 2022 |
Printed | Page 513 Using t-distribution probability tables |
The first graphic on the page shows the two tails, measuring 0.025 each. Then the next graphic shows the single tail used to find the value of t, which is great - and implies that for our data p=0.025. |
Anonymous | Oct 24, 2009 |
515 or 518 Table at bottom of 515, first question on 518 |
In the table at the bottom of p. 515, it says that one of the conditions for using the t-distribution is that the population distribution is normal _or_ non-normal, but in the answer to the first question on p. 518, it doesn't mention being able to use it when the population is non-normal. I'm not sure which is right. |
Kathy Wolf | Jul 28, 2009 | |
Printed | Page 518 Exercise Solution |
This error (if it is one) appears at several locations in the chapter. |
Anonymous | Oct 14, 2013 |
Printed | Page 518 Second sentence in the second paragraph of the exercise solution |
The word "poisson" should be capitalized as "Poisson." |
Dan Tinsley | Jun 26, 2022 |
Printed | Page 523 In the text pointing at the results boxes |
The word "patients" should be "patients'" since it is possessive. |
Dan Tinsley | Jun 28, 2022 |
Printed | Page 524 Sharpen your pencil Solution box |
Firstly, there is an extra sentence in the solution than there was in the actual problem. In the actual problem, there were two sentences, while in the solution, there are three. The extra sentence should either be removed or it should be added to the actual question on the prior page. Secondly, in the second sentence of the solution, the word "doctors" should be "doctor's" since it should be possessive and not the plural form of "doctor." Lastly, the second sentence of the solution itself has the same issue as the prior issue. The word "doctors" should be "doctor's" since it should be possessive and not the plural form of "doctor." |
Dan Tinsley | Jun 28, 2022 |
Printed | Page 526 In the text pointing at "Examine the evidence" |
In the second sentence, the word "doctors" should be "doctor's" since it should be possessive and not the plural form of "doctor." |
Dan Tinsley | Jun 28, 2022 |
Printed | Page 534 Last paragraph under "Two-tailed tests" |
The second sentence of the paragraph is missing an ending period. |
Dan Tinsley | Jun 28, 2022 |
Printed | Page 538 Second paragraph under "So what did we just do?" |
In the last sentence of the paragraph, the word "doctors" should be "doctor's" since it should be possessive and not the plural form of "doctor." |
Dan Tinsley | Jun 28, 2022 |
Printed | Page 539 First sentence after Second "A:" |
"have0" is probably supposed to simply be "have". |
Anonymous | Jan 10, 2018 |
Printed | Page 539 In the bullet points box |
In the first sentence of the fifth bullet point in the left column, there is a small box where the Greek character alpha should be instead. |
Dan Tinsley | Jun 28, 2022 |
Printed | Page 550 exercise solution |
Z=(80-90)/3 should be changed to z=(80.5-90)/3 |
杜汉昌 | May 28, 2016 |
Printed | Page 560 Third sentence of first paragraph of the first question |
In the sentence noted, there is a small box where the Greek letter alpha should be. |
Dan Tinsley | Jun 29, 2022 |
Printed | Page 564 Solution Step 2 |
The standard deviation used in step 2 of the solution is listed as sqrt(.25)=0.5. However, on the previous page the distribution of the syrup in the bottles was listed as N(355,25), meaning the standard deviation should be 5. This changes the answers in part 2 of the exercise. |
Anonymous | Dec 01, 2009 |
Printed | Page 564 Under Step 3 |
The critical value is reported as 2.32, but a closer estimate from the probability table is 2.33. The true value is between 2.32 and 2.33, but it is closer to 2.33. |
James | Jul 05, 2021 |
Printed | Page 564 Solution step 2 |
This is just to clarify that despite the reported "minor technical mistake," there is no error in Step 2 on this page. The person who said the standard deviation used to calculate the Z-score of X-bar should be 5 instead of 0.5 was incorrect. They were confusing the distribution of X-bar with that of X. The reason Var(X-bar) = 0.25 rather than 25 is that Var(X-bar) = Var(X)/n. So 25/100 = 0.25, and its positive square root is 0.5, which is the standard deviation of X-bar. |
James | Jul 05, 2021 |
Printed | Page 576 Step 4 in the list |
There is an empty square where there should be the uppercase 'X' variable, instead. |
Dan Tinsley | Jun 30, 2022 |
Printed | Page 576 In almost every question and answer under "There are no Dumb Questions" |
There are six empty squares where there should be variables, instead. |
Dan Tinsley | Jun 30, 2022 |
Printed | Page 583 Step 4 Instructions |
There is an empty box where the uppercase 'X' variable should be. |
Dan Tinsley | Jul 01, 2022 |
Printed | Page 584 Table at bottom of page |
There are four empty boxes within the table where there should be variables instead. |
Dan Tinsley | Jul 01, 2022 |
Printed | Page 589 In the first sentence of the text above the bottom table |
There is an empty box where there should be an uppercase 'X' variable. |
Dan Tinsley | Jul 01, 2022 |
590 Last table |
In the row corresponding to wins from Croupier B, the (O-E) part wasn't squared. So it should read, (49-43.32)^2 / 43.32 = 32.2624 / 43.32 = .745 |
Kathy Wolf | Jun 29, 2009 | |
Printed | Page 590 Bottom chart of solution - (O-E)^2/E |
In the solution shown on p 590, the line for Croupier B Wins |
Anonymous | Jan 30, 2011 |
Printed | Page 590 3rd table |
The 5th row of the 3rd table on the page specifies: |
Robert Kearney | Feb 02, 2021 |
Printed | Page 590 In the first sentence of the text above the bottom table |
Similar to the prior page, there is an empty box where there should be an uppercase 'X' variable instead. |
Dan Tinsley | Jul 01, 2022 |
Printed | Page 592 Step 4 in the list |
There is an empty box where there should be an uppercase 'X' variable instead. |
Dan Tinsley | Jul 01, 2022 |
Printed | Page 594 step 4 |
prior errata for page 590 (failure to square numerator of one line of table) results in a chi-square value of 5.618 |
Peter Partch | Feb 05, 2015 |
Printed | Page 594 Step 4 in the list |
Similar to page 592, there is an empty box where there should be an uppercase 'X' variable instead. |
Dan Tinsley | Jul 01, 2022 |
Printed | Page 595 The middle question on the page |
Both in the question, as well as in the answer to the question, there is an empty box where there should be the Greek letter Chi variable instead. |
Dan Tinsley | Jul 01, 2022 |
Printed | Page 603 3rd line in the table, result in the last line of the table, result below the table and in Step 5. |
The X² result for A Black is given as s"0.005", but it should be 0.052 instead. This leads to the X² sum of 1.583, which should be 1.63 instead. |
Susanne | Sep 03, 2015 |
Page 623 line 21 |
the mean of y should be 38.875,here all typo 38.75 |
Anonymous | Jul 14, 2011 | |
Page 626 Bottom part of page |
It says "you can use it to predict the value of y, given a value b" |
Anonymous | Feb 19, 2015 | |
638-639 Exercise Solution |
I know this has already been mentioned in the errata, but in case, like me, you didn't notice the error until you had done the whole exercise already with the (original) data set on p. 636: |
Kathy Wolf | Jul 09, 2009 | |
Printed | Page 644 Rightside arrow text under Dotplots and first sentence under Stemplots |
The word "quantitive" isn't a real word. The correct word is "quantitative." |
Dan Tinsley | Jul 05, 2022 |
Printed | Page 646 Second paragraph, first bold word |
"indpendent" should probably be "independent". |
Anonymous | Jan 11, 2018 |
Printed | Page 651 First sentence |
It is claimed on this page that "You've seen how you can find confidence intervals for [the mean] and [variance]", but that overstates what the book covered regarding how a confidence interval for variance is computed. The only time that particular topic is specifically addressed at all is in the Q & A on page 491: "Theoretically, yes [it's possible to construct a confidence interval for the variance], but we haven’t covered the sampling distribution for the variance, and we’re not going to." |
James | Jul 17, 2021 |