Errata

Statistics Hacks

Errata for Statistics Hacks

Submit your own errata for this product.

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
Mobi United States

None of the hack titles have their "Hack #" included but all references in the text to other hacks refer to them by number. This is really unhelpful and is particularly noticeable in the Mobi edition.

 Anonymous  May 15, 2014 
Printed Page 5
5th paragraph

"if you add up those distances, you get a total that is as small as possible"

Counter example 0, 3 and 3 whose mean is two and total distance of all points is 4.
The total distance from point 3 is 3

 Anonymous   
Printed Page 6
2 bullet near bottom of page

Text states

The standard deviation of these means is equal to the sample standard deviation divided by the square root of the sample size, n

Should be

the standard deviations of these means is equal to the population standard deviation divided by the square root of the sample size, n

 Steven Heller  Feb 04, 2018 
PDF Page 34
2nd paragraph (first paragraph of new section "Does Weight Cause Height?").

The sentence:

"Taller males weigh more,usually, then shorter males, for example."

should read:

"Taller males weigh more,usually, than shorter males, for example."

where "than" replaces "then".

 Anonymous  Feb 26, 2012 
Printed Page 176
hack #41

This isn't so much an erratum as an omission. The analysis is fine so far as it goes, but it leaves out that if you lose you are out the money you paid, but if you win you only keep about 60% of the prize money since 40% goes to federal and state income taxes. That lowers the odds of winning by another 40% from the analysis in your hack #41 and makes lotteries a real fraud.

 Anonymous   
Printed Page 261
last line at bottom of page 261 in print edition

The last line at bottom of page 261 in print edition reads:

311,875,200/20 = 2,598,960

..but it should instead read:

311,875,200/120 = 2,598,960

The denominator "20" should be "120"

 Tom Maher  Jan 26, 2016 
Printed Page 272
Displayed equation in the middle of the page

In the summation you use the symbol "k", but you never explain what "k" is.

 Anonymous   
Printed Page 285
5th paragraph (formula) - about 2/3s of the way down the page

The formula for the "Number of Possible Winning Combinations =" should be:

n!/k!(n - k)!

The book has k! in the numerator

 Anonymous