Head First Data Analysis

Errata for Head First Data Analysis

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. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question Note Update



Version Location Description Submitted By Date Submitted Date Corrected
Printed
Page iv
"Other books in O'Reilly's Head First series"

There is one Head First book missing from the list: Head First C#

Note from the Author or Editor:
the reader is correct

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page xxiii
1st paragraph

"there's so much left the learn" should be "there's so much left to learn"

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page xxxiv & xxxv
Last paragraph

"The crossword puzzles are the only thing you don't have to do..." There are no crossword puzzles in this book. This is leftover text from previous Head First books, and should be removed.

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page xxxvii
"Really smart people..." paragraph

"While many of big ideas" should be "While many of the big ideas"

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page 53
Marketings last comment

Marketing: ... but we'll be sacrificing out profit margins forever if we cut prices (not costs). They are talking about reducing the customer's price for the product, the the cost to produce the product.

Note from the Author or Editor:
"we'll be sacrificing our profit margins forever" should be changed to read "we'll destroy our brand image"

Anonymous  Nov 01, 2009  Apr 01, 2011
Printed
Page 75
1st paragraph

..there's an tool of data analysis... should be: ..there's a tool of data analysis...

Note from the Author or Editor:
the reader is correct

Pete Aven  Aug 23, 2009  Apr 01, 2011
Printed
Page 91-92
throughout

"dialogue box" should be "dialog box"

Anonymous  Nov 21, 2009  Apr 01, 2011
Printed
Page 97
Middle

On page 97, the memo states that only 80 fish and 20 ducks were sold. The graphs and excel spreadsheets listed on pages 101-103 do not support the memo's claim.

Note from the Author or Editor:
On page 101, remove the annotation "Here's the most recent month, when everything went wrong."

royk4  Oct 16, 2009  Apr 01, 2011
Printed
Page 102
second annotation

"Here's switch" should be "Here's a switch". And "ahaead" should be "ahead".

Anonymous  Nov 21, 2009  Apr 01, 2011
Printed
Page 167
1st paragraph

...ElectroSkinny was had a line..., should be ... ElectroSkinny has a line...

Pete Aven  Aug 23, 2009  Apr 01, 2011
Printed
Page 174
Scenario 1 box

In the first line of the "Scenario 1" box, "poeple" should be "people"

Anonymous  Nov 22, 2009  Apr 01, 2011
Printed
Page 179 & 180
Bottom of page

The labels don't map to the variables. Either I'm missing something. But in the example we tested positive for lizard flu, and the numbers used for calculation correspond to the positive, but the labels all refer to the negative: The probability that you have it, given you tested negative (should be positive) # of people who have it and tested negative (should be tested positive) similar for the denominator, as well as the fill in the blanks on page 179.

Note from the Author or Editor:
There is an error here. The math is correct -- there is a 9% chance that you have lizard flu. But the equation itself is incorrectly worded. It should be: The probability that you have it given you tested positive = # people who have it and test positive / (# who have it and test positive + # who don't have it and test positive) The error should be fixed on both p 179 and 180.

Pete Aven  Aug 23, 2009  Apr 01, 2011
Safari Books Online
182
the bottom formula

P(L|+) = P(L)P(+|L) ----------------------- P(L)P(+|L)+P(~L)P(+|~L) The original formula's P(-) should be replaced with P(~L).

Note from the Author or Editor:
this is indeed an error and should be corrected as he says

Anonymous  Sep 08, 2009  Apr 01, 2011
Printed
Page 183
Under "The base rate: 1%

Missing text: " Your chances of having lizard flu: 9%"

Anonymous  Mar 31, 2011  Apr 01, 2011
Printed
Page 222
1st sentence

How does the now distribution of beliefs ... look? shouldn't it be: How does the distribution of beliefs ... look now?

Note from the Author or Editor:
the reader is correct. his suggestions should be implemented.

Pete Aven  Aug 23, 2009  Apr 01, 2011
Printed
Page 302
Correlation up Close : 1st Sentence

How do you got ..., should be: How do you get ...

Note from the Author or Editor:
the reader is correct. "How do you got" should be "How do you get"

Pete Aven  Aug 23, 2009  Apr 01, 2011
Printed
Page 377
Comment regarding the WebComments table

The comment about the WebComments table begins, "This tables is new...". The comment should begin "This table is new...".

Note from the Author or Editor:
The reader is correct.

Scot McDermid  Nov 11, 2009  Apr 01, 2011
Printed
Page 381
The figure and the comment.

The last sentence in the comment at the bottom of the page begins "Nike has a pretty big spread...". In the figure there is no author with the name "Nike". However, there is an author named "Niko" and Niko does have a pretty big spread.

Note from the Author or Editor:
Yep, it should be Niko at the bottom instead of Nike.

Scot McDermid  Nov 11, 2009  Apr 01, 2011
Printed
Page 417
1st paragraph

"there's so much left the learn" should be "there's so much left to learn"

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page 420
1st paragraph

"rereading the work of data great analysts" should be "rereading the work of great data analysts"

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page 422
1st paragraph

"it's great software platform" should be "it's a great software platform"

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page 422
1st paragraph

"community of user and contributors" should be "community of users and contributors"

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page 423
Annotation for "y = a + bx" equation

"You use data this equation to predict" should be "You use this equation to predict"

Note from the Author or Editor:
the reader is correct

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page 423
Bottom equation, second line of top callout

Possible word substitution of "verbal" for "variable."

Note from the Author or Editor:
yes, the world should be "variable"

Curtis Frye  Sep 04, 2009  Apr 01, 2011
Printed
Page 425
Last paragraph

"Goolge Docs" should be "Google Docs"

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page 427
1st paragraph

pretty sure 'word-class' should be 'world-class'

Note from the Author or Editor:
the reader is correct

Pete Aven  Aug 23, 2009  Apr 01, 2011
Printed
Page 428
Bullet #1, "Click this download link." annotation

The arrow from the "Click this download link" annotation does not point to the download link. It points to "Members & Donors" and/or "Mailing Lists".

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page 429
Bullet #3, 1st paragraph.

"let the installer do its work.." should be "let the installer do its work."

Bill Mietelski  Aug 07, 2009  Apr 01, 2011
Printed
Page 429
Bullet #4, "Here's what" annotation

"Here's what R window looks like" should be "Here's what the R window looks like"

Bill Mietelski  Aug 07, 2009  Apr 01, 2011