Question

Which of the following distributions is the least likely to fit a normal distribution?

Distribution of the heights of professional soccer players

Distribution of the weights of salmon in the Pacific Ocean

Distribution of test scores among those who took the SAT in 1998.

Distribution of the ages of automobiles in driveable condition.

Distribution of the points scored by a basketball player per game.

Answer 1

A normal distribution is basically a perfect bell curve 50 percent on left 50 percent on right and the max at the middle. (The G spot ;) )

For this I'd have to say the first one has the most normal distribution.

The reason is because soccer players neither have to be tall nor' short in order to be good but there are always the select few who are either taller or shorter than the others but overall they're all about the same.

Answer 2

do u disagree with the first guys epxlanation?

Answer 3

Whoops least likely was the question, let me start again hehe

Answer 4

i think the first person is saying, that soccer player heights is more like a 'uniform' distribution, rather than a bell curve distribution

Answer 5

heights will most likely follow a bell curve

Answer 6

right, because it is symmetric about the mean

Answer 7

and we don't have too many 'outliers'

Answer 8

so its between the last two choices

Answer 9

i think it could be the automobile, since you have a lot of 'vintage' cars, people keep them in good condition past normal driving age

Answer 10

so its not symmetric about the mean, there are many outliers

Answer 11

I'll have to go with the distribution of ages of driveable automobiles because not all vintage cars get repaired an driven again most of them just get dumped, but a good number of them also get refurbished etc.

Answer 12

Yeah the average age of cars on the road is about 11 years

http://www.autonews.com/article/20130806/RETAIL/130809922/average-age-of-u.s.-car-light-truck-on-road-hits-record-11.4-years

However, you have very far outliers (example: cars from 1960), but not too many of them. So you have a long tail pulled to the right.

Answer 13

well all cars are driveable when they are 0 years old (when they are assembled in factory)