The French release a study on average penis size

dirkjesje

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And if 90% of men are average, 5% are bigger and 5% are smaller. What is the point.

To be honest, an average which applies to 80-90% of people seems about right to me.
Statistically an average range is the range between -1 standard deviation upto +1 standard deviation ( approx 2 on 3 [68%] )
So 1/3 is out of this range - approx 1 on 6 smaller; approx 1 on 6 bigger.
( clothing industry / f.e. shoes has a higher production number in the average range )
 

ShannonH

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it has to be 5.2+
the bottom end of the IQR is hardly going to be less than 5
protip the " goes after the number

They didn't include the data to see their girth distribution, but if we just go by the lifestyles study (which has that distribution, and has been pointed out in this thread is probably mostly measuring bigger guys since it's a self-selected sample) then the TOP end of the IQR is actually a little below 5.2". The IQR looks to be around 4.4" to 5.1" - so for the non-statslovers here, that's the range where 50% of men's girth falls.
The bottom 5% is below 3 3/4" girth, and the top 5% starts around 5 1/2" girth. Only 1% was above 6" around.
So if you'd slept with an equally random sample of men (the same kind of guys who showed up for the study -- probably the bigger guys), if you'd only slept with 10 men in your life, the odds of them all being 6" thick or more is 1 in 10^20, or 1 in 100,000,000,000,000,000,000, or 1 in 100 quintillion. That's about the same odds as winning the powerball lottery jackpot 5 times in a row.
Even if you lower it down so every guy was over 5.5" around, to have only fucked guys that thick or more (so maybe your average was ~6"..) that's still 1/20 guys that big, so that's 1 in 10,240,000,000,000, or about 1 in 10 trillion.
Not that it's impossible to fuck 10 guys that thick, but the only way for every guy to have been that thick or more is if you specifically are filtering on dick girth.
 

bobg4400

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They didn't include the data to see their girth distribution, but if we just go by the lifestyles study (which has that distribution, and has been pointed out in this thread is probably mostly measuring bigger guys since it's a self-selected sample) then the TOP end of the IQR is actually a little below 5.2". The IQR looks to be around 4.4" to 5.1" - so for the non-statslovers here, that's the range where 50% of men's girth falls.
The bottom 5% is below 3 3/4" girth, and the top 5% starts around 5 1/2" girth. Only 1% was above 6" around.
So if you'd slept with an equally random sample of men (the same kind of guys who showed up for the study -- probably the bigger guys), if you'd only slept with 10 men in your life, the odds of them all being 6" thick or more is 1 in 10^20, or 1 in 100,000,000,000,000,000,000, or 1 in 100 quintillion. That's about the same odds as winning the powerball lottery jackpot 5 times in a row.
Even if you lower it down so every guy was over 5.5" around, to have only fucked guys that thick or more (so maybe your average was ~6"..) that's still 1/20 guys that big, so that's 1 in 10,240,000,000,000, or about 1 in 10 trillion.
Not that it's impossible to fuck 10 guys that thick, but the only way for every guy to have been that thick or more is if you specifically are filtering on dick girth.

Since you seem to be awesome at statisics i was wondering if you could explain something?
Is there a way to combine the percentages like top 5% for girth and top 50% for length or something to get an overall percentage for penis size rather than length and girth separately?
 

bassman70

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They didn't include the data to see their girth distribution, but if we just go by the lifestyles study (which has that distribution, and has been pointed out in this thread is probably mostly measuring bigger guys since it's a self-selected sample) then the TOP end of the IQR is actually a little below 5.2". The IQR looks to be around 4.4" to 5.1" - so for the non-statslovers here, that's the range where 50% of men's girth falls.
The bottom 5% is below 3 3/4" girth, and the top 5% starts around 5 1/2" girth. Only 1% was above 6" around.
So if you'd slept with an equally random sample of men (the same kind of guys who showed up for the study -- probably the bigger guys), if you'd only slept with 10 men in your life, the odds of them all being 6" thick or more is 1 in 10^20, or 1 in 100,000,000,000,000,000,000, or 1 in 100 quintillion. That's about the same odds as winning the powerball lottery jackpot 5 times in a row.
Even if you lower it down so every guy was over 5.5" around, to have only fucked guys that thick or more (so maybe your average was ~6"..) that's still 1/20 guys that big, so that's 1 in 10,240,000,000,000, or about 1 in 10 trillion.
Not that it's impossible to fuck 10 guys that thick, but the only way for every guy to have been that thick or more is if you specifically are filtering on dick girth.
Pardon my ignorance, but what does IRQ stand for? I'm 5 5/8 midshaft girth(actually most of my shaft). I've been told I'm big, somewhat thick etc., but I don't think 1 in 20 thick.
 

bobg4400

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Pardon my ignorance, but what does IRQ stand for? I'm 5 5/8 midshaft girth(actually most of my shaft). I've been told I'm big, somewhat thick etc., but I don't think 1 in 20 thick.
IQR stands for InterQuartile Range which is where 50% of people are. I have no idea how he got the 1/20 figure since by my logic(I'm probably wrong) if 1% of people are over 6 inches that gives a 1/100 chance of being over 6 inches?

Also what do you doubt about the 1/20 figure?
You think 5 5/8 girth is rarer or more common than 1/20?
 

bassman70

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IQR stands for InterQuartile Range which is where 50% of people are. I have no idea how he got the 1/20 figure since by my logic(I'm probably wrong) if 1% of people are over 6 inches that gives a 1/100 chance of being over 6 inches?

Also what do you doubt about the 1/20 figure?
You think 5 5/8 girth is rarer or more common than 1/20?
I would say more common. I realize it's above average, but it's not exactly giant.
 

ShannonH

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Since you seem to be awesome at statisics i was wondering if you could explain something?
Is there a way to combine the percentages like top 5% for girth and top 50% for length or something to get an overall percentage for penis size rather than length and girth separately?

This cannot be done unless you have the original, raw data (ie the measurements for every single participant in the study.) What we have access to is the total distribution - the percentage of people at a certain length, and the percentage of people at a certain girth. If there was no correlation at all between length and girth this may be possible, but it's likely that people with longer dicks also have thicker ones.

The 1/20 range was just for the over 5.5" range; you can check both the wikipedia penis size article or mraverage.com if you want to see the stats I'm basing this on. The resulting probability of a moderately-sized sexual history having all dicks that thick is so ridiculously low that it doesn't make sense to split hairs over it. What I really want to show here is the difference between reality and our perception, which is exactly the motivation for gathering these stats in the first place.
 

ShannonH

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I would say more common. I realize it's above average, but it's not exactly giant.

This is another example of a disconnect between actual numbers and our perception. 95th percentile isn't 'giant' when measuring any part of the human body. To compare, for men's height in the US (age 20-45 -- full-grown men) the 95th percentile is just below 6'3". nobody 6'3" would be called a giant, but they're certainly tall.
 

bobg4400

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This is another example of a disconnect between actual numbers and our perception. 95th percentile isn't 'giant' when measuring any part of the human body. To compare, for men's height in the US (age 20-45 -- full-grown men) the 95th percentile is just below 6'3". nobody 6'3" would be called a giant, but they're certainly tall.

So, just to make sure i get it, this means that the same number of people who are 6'3" also have a dick that is bigger than 5.5 inches in girth,BUT they are not necessarily the same people?
i.e some people may be 6'3"+ but have a dick less than 5.5 inches in girth and some people may be 6'3"- but have a dick more than 5.5 inches in girth?
 

dirkjesje

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So, just to make sure i get it, this means that the same number of people who are 6'3" also have a dick that is bigger than 5.5 inches in girth,BUT they are not necessarily the same people?
i.e some people may be 6'3"+ but have a dick less than 5.5 inches in girth and some people may be 6'3"- but have a dick more than 5.5 inches in girth?
No. It's just an example how you must interprete statistical numbers.
95th percentile of dicks in reference to body lenght or whatever.
He wanted to show you what a 95th percentile really is. And for body lenght it is for the US just below 6'3".
That means that only 1 on 20 is taller.

The clothing industry is more working with std's.
Where -1std upto +1std is common, so average range ( that's 68% of the population, so 2 on 3 )
-1std or + 1std is small or big ( 1 on 6; for each range )
-3std or + 3std is exceptional ( 1on 768 for each range )
So the clothing industry is never going to make clothes for those exceptional ranges.
And in the range between big and exceptional, only a limited number are made. ( f.e. shoe sizes )

I'm a statistical analyst, but Shannon can explain it much better in fluent English. The point is - that even you differs a little bit from average, the numbers drop amazingly.
In the thread - can you show a real 8" ? - Well according to statistics, only 1 on 769 is +7"80 NBPL - that's why we see so little of them (real 8"-ers); even on this board.
 
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ShannonH

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So, just to make sure i get it, this means that the same number of people who are 6'3" also have a dick that is bigger than 5.5 inches in girth,BUT they are not necessarily the same people?
i.e some people may be 6'3"+ but have a dick less than 5.5 inches in girth and some people may be 6'3"- but have a dick more than 5.5 inches in girth?

I'm not connecting dick size and height in any way here -- I'm just saying that there's about as many guys out there 6'3" and up as there are guys with 5.5" girth and up, but I'm not saying anything about correlation.

It's like saying 5% of men have some kind of colour blindness, and 5% of men have dicks at least 5.5" thick. The odds of a colour blind person having a thick dick aren't any higher than anyone else. The interesting thing in statistics is how much less likely it becomes very quickly when you combine it together. The odds of someone being both colour-blind and having a 5.5" thick one are 0.25% -- 1 in 400.

While colour blindness probably has no correlation to dick girth, dick length probably has some correlation. If a guy has a thick dick he's probably more likely that it be longer too, but there are plenty of thick shorter dicks out there too. You'd need to actually check the original data to find how closely correlated they are.
 

B_duanculo

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I noticed the girth result, too. Most surveys seem to put erect girth at slightly below 5", at 5", or even slightly above 5". I have no experience with erect penises outside porn (and my own) so I'm not exactly the best person to judge, but 4" seems low to me. I kinda hope it's true, though, cause it makes me feel thick at around 5,3" :p

yeah I agree with mongo, 4 cinh girth does seem rather thin, I'd always assumed erect girth average was about 5 inches. ALthough, since I've come to the site i realise there's a lot less variation in girth then there is in length plus the deviations between average/small/huge etc seem a lot smaller for girth then length.

Also does anyone know if the study measures BPEL or NBPEL?
I can't read french and the newspaper article doesn't say.

I remember there being a previous study that put French men as the longest in the world. Comparing country to country is silly because you'd have to compare study to study, and studies vary by as much/more than the standard deviation in a lot of cases.

Looks like when it's a medically supervised study, once again the average dicks are in the low 5".

The girth measurement does seem a little lower than usual -- I'm wondering if this has to do with the tension on the tape? I think nearly everyone here just wraps the tape around, but if you tighten it you'd measure a little smaller.

if only average girth was really 4. seriously doubt it
 

Cylon No1

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No wonder they lost the war
The French surgical Academy just released a study where it says an average penis measures between 9 and 9.5 cm (flacid) and 12,8 and 14, 5 (erect). Circumference would be 8,5/9 cm (flacid) to 10/10,5 cm when erect.

The study was carried out due to the apparent increase in men asking for penis enlargement surgery in recent years.

More info (in french) here: Pénis : La vérité sur la taille moyenne | France Soir

In English: The Local - It's official: French docs reveal 'normal' penis size[/QUOTE]