Posts tagged ‘stats’

Stupid Stats

C’mon, now… really?

Uterine size in non-pregnant women varies in relation to age and gravidity [number of pregnancies]. The mean length-to-width ratio conformed to the golden ratio at the age of 21, coinciding with peak fertility.

Claiming that a uterine golden ratio coincides with peak fertility is highly suspect. The good folks at Ava Women claim that, “Most women reach their peak fertility rates between the ages of 23 and 31.” Information at Later Baby states, “Female fertility and egg quality peak around the age of 27.” And WebMD says, “A woman’s peak fertility is in her early 20s.” So, there seems to be some debate about when peak fertility actually occurs. Consequently, this strikes me as retro-fitting, and it seems that Dr. Verguts and his colleagues may have played loose with the age of peak fertility in order to make a connection to the golden ratio.

In their defense, though, it’s not the first time that folks have gone uptown trying to find a connection to the golden ratio. A claim by The Golden Number states, “[The DNA molecule] measures 34 angstroms long by 21 angstroms wide for each full cycle of its double helix spiral,” and 34/21 ≈ 1.6190476, which is approximately equal to φ, 1.6180339.

Though this guy — an honest-to-goodness biologist — seems to disagree:

I’ve also heard folks say that people are perceived as more beautiful if certain bodily proportions are in the golden ratio. The most extreme example of this that I’ve found involves the teeth:

…the most “beautiful” smiles are those in which central incisors are 1.618 wider than the lateral incisors, which are 1.618 wider than canines, and so on.

In a study of 4,572 extracted adult teeth, Dr. Julian Woelfel found the average width of the central incisor to be 8.6 mm. If the teeth in a beautiful smile follow the geometric progression described above, well, that would imply that the first molar would be just 8.6 × 0.6185 ≈ 0.8 mm wide, which isn’t reasonable and, moreover, is not even remotely close to the average width that Dr. Woelfel found for the first molar: approximately 10.4 mm.

But all of these claims involving the golden ratio are not even close to being the stupidest statistics I’ve heard in my life. Mary Anne Tebedo made a remark on the floor of the Colorado State Senate in 1995 that may hold that distinction:

Statistics show that teen pregnancy drops off significantly after age 25.

Of course, it’s hard to call that a statistic, since it’s completely nonsensical. Maybe it’s only the stupidest statement I’ve ever heard.

Then there’s this one, from the New York Times on August 8, 2016, which couldn’t be more useless:

No presidential candidate has secured a major party nomination after an FBI investigation into her use of a private email server.

Well, duh. Email didn’t even exist before the 1970’s. Moreover, besides Hillary Clinton, has any presidential candidate ever had their use of a private server investigated by the FBI? This is like saying, “No one has ever been named People‘s Sexiest Man Alive after writing a math joke book.” (Not yet, anyway.)

Randall Munroe made fun of these types of “no politician has ever…” claims in 2012 with his cartoon Election Precedents:

Bill Beat Bob

And it’s true:

Bill - ScrabbleBob - Scrabble
But perhaps my all-time favorite is one that Frank Deford — may he rest in peace — included in his piece “The Stupidest Statistics in the Modern Era” on NPR’s Morning Edition:

He’s [Brandon Phillips] the first National League player to account for as many as 30 steals and 25 double plays in one season.

About this stat, Deford commented, “Steals and double plays together? This is like saying, ‘He’s the first archaeologist to find 23 dinosaur bones and 12 Spanish doubloons on the same hunt.'” (I sure am going to miss him.)

The preponderance of dumb stats shouldn’t come as a surprise, though. A recent study found that people deemed real news headlines to be accurate 83% of the time and fake news headlines to be accurate 75% of the time. So, if we can’t tell truth from fiction, how can we possibly distinguish useful statistics from inane?

FactitiousIf you’d like to test your ability to detect fake news, check out Factitious from American University.

January 9, 2018 at 8:43 am Leave a comment

2011 in Review

Happy New Year!

The WordPress.com stats helper monkeys prepared a 2011 annual report for the Math Jokes 4 Mathy Folks blog.

Here’s an excerpt:

The concert hall at the Syndey Opera House holds 2,700 people. This blog was viewed about 53,000 times in 2011. If it were a concert at Sydney Opera House, it would take about 20 sold-out performances for that many people to see it.

Thanks to all of you who visit and make writing this blog worthwhile!

Click here to see the complete report.

January 1, 2012 at 9:38 pm Leave a comment

Year in Review

The stats helper monkeys at WordPress.com mulled over how this blog did in 2010, and here’s a summary of its overall performance. 

Crunchy numbers

Featured image

A helper monkey made this abstract painting, inspired by your stats.

A Boeing 747-400 passenger jet can hold 416 passengers. This blog was viewed about 7,300 times in 2010. That’s about 18 full 747s.

In 2010, there were 110 new posts, not bad for the first year! There were 62 pictures uploaded, taking up a total of 9mb. That’s about 1 picture per week.

The busiest day of the year was September 7th with 134 views. The most popular post that day was Inversions.

Where did they come from?

The top referring sites in 2010 were xwhy.comicgenesis.com, wildaboutmath.com, Google Reader, mathjokes4mathyfolks.com, and facebook.com.

Some visitors came searching, mostly for math jokes, math jokes 4 mathy folks, math jokes for mathy folks, mathematical jokes, and funny math jokes.

Attractions in 2010

These are the posts and pages that got the most views in 2010.

1

Inversions September 2010
3 comments

2

Holy Cow! May 2010
1 comment

3

Pun and Games November 2010
5 comments

4

Movie: Fermat’s Room July 2010
5 comments

5

XXX Rated October 2010
4 comments

January 3, 2011 at 9:11 am Leave a comment


About MJ4MF

The Math Jokes 4 Mathy Folks blog is an online extension to the book Math Jokes 4 Mathy Folks. The blog contains jokes submitted by readers, new jokes discovered by the author, details about speaking appearances and workshops, and other random bits of information that might be interesting to the strange folks who like math jokes.

MJ4MF (offline version)

Math Jokes 4 Mathy Folks is available from Amazon, Borders, Barnes & Noble, NCTM, Robert D. Reed Publishers, and other purveyors of exceptional literature.

Past Posts

September 2019
M T W T F S S
« Aug    
 1
2345678
9101112131415
16171819202122
23242526272829
30  

Enter your email address to subscribe to the MJ4MF blog and receive new posts via email.

Join 398 other followers

Visitor Locations

free counters