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Statistics Hacks ペーパーバック – イラスト付き, 2006/5/30
購入オプションとあわせ買い
- 本の長さ336ページ
- 言語英語
- 出版社O'Reilly Media, Inc, USA
- 発売日2006/5/30
- 寸法15.7 x 1.97 x 22.8 cm
- ISBN-100596101643
- ISBN-13978-0596101640
商品の説明
著者について
Bruce Frey, Ph.D., is an assistant professor of psychology and research in education at the University of Kansas. Previous books include "Online Auctions! I Didn't Know You Could Do That " published by Sybex and, with Neil Salkind, "eBay Online Auctions: Effective Buying and Selling with eBay" published by Muska & Lipman. He is an award-winning teacher of statistics, research design, and measurement. Bruce enjoys movies and collecting comic books, especially those early 1960s DCs with the cool checkered flag pattern. (Note to his tenure committee: In the research field of education, he is also an author of fifty scholarly publications and papers.)
登録情報
- 出版社 : O'Reilly Media, Inc, USA; 第1版 (2006/5/30)
- 発売日 : 2006/5/30
- 言語 : 英語
- ペーパーバック : 336ページ
- ISBN-10 : 0596101643
- ISBN-13 : 978-0596101640
- 寸法 : 15.7 x 1.97 x 22.8 cm
- カスタマーレビュー:
著者について
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It's important to understand that this book is not intended to be a statistics textbook, review, or reference manual. Rather, it is a collection of bite-sized hacks that relate statistical principles to the "real" world. Every hack is illustrated with some example, including many relating to gambling, games, and bar bets. Which properties should you buy in Monopoly? The answer is here, along with an explanation. How many people have to be in a room with you before you can be pretty sure that at least one of them shares your birthday? That's here, too, along with the explanation. Is there a way to predict the winner of a baseball game by listening to about twenty minutes of the middle of it? Yep.
If you're looking for an authoritative, comprehensive, serious statistics text, keep shopping. If you're looking for a light but nonetheless very useful explanation/review of how and why statistics work in a real-world context, buy this book.
I'm glad I bought it, and I'd do it again. I got more than enough entertainment and utility out of it to justify the expense.
Page 5:
"The mean will be close to some scores and far away from some others, but if you add up those distances, you get a total that is as small as possible."
Wrong. The mean minimizes the sum of SQUARED distances; the MEDIAN minimizes the sum of the distances. Hand-waving on the next page apologizing for how complicated the formula for the standard deviation is because "there are some mathematical complications with summing distances" would suggest to me that the omission of "squared" on page 5 was not a mere typo or a misguided attempt at simplification.
OK, sure, one error like that isn't worth trashing a book over, particularly a book for lay people (albeit those with a technical bent). But check out this howler on page 10:
"Additive rule: the probability of any one of several independent events occuring is the *sum* of each event's probability." [Emphasis on "sum" is the book's, not mine.]
This isn't just plain wrong; it's cringe-inducingly, forehead-slappingly wrong. The additive rule is for any one of several mutually exclusive events occuring, and independent pretty much implies *not* mutually exclusive (the annoying corner cases being those where some events under consideration are completely impossible anyhow). The rule for one of several independent events occuring is more complicated; for example, the probability of a fair coin coming up "heads" on either its first or second flip is obviously not 1, as the author's statement would ridiculously imply, but rather 3/4.
In order to do anything with statistics at all, you absolutely MUST understand the basic concepts of "independent" and "mutually exclusive", or you're doomed from the get-go. The fact that this book is for lay people who might not already be clear on these concepts only makes having such an error in it that much less excusable.
If the author can't be bothered to stamp out obvious errors like this in the first 10 pages -- particularly the latter -- I can't be bothered to read the rest of it. Maybe the second edition will be worth glancing at, but I'm not holding my breath. (For one thing, the overall writing style in that first 10 pages wasn't particularly lucid either.)