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## #1 2013-04-22 23:32:04

MathNewbie22
Member
Registered: 2013-04-22
Posts: 4

### Uniform distribution

Suppose you sample 1 value from a uniform distribution with a = 0, b = 20.
What is the probability that the value will be between 13 & 19?

Can someone also please explain this? I'm having a lot of trouble with this probability chapter atm..
Any help would be much appreciated..

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## #2 2013-04-23 00:41:34

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,979

### Re: Uniform distribution

hi MathNewbie22,

Welcome to the forum.

The graph below shows the pdf for a uniform distribution running from 0 to 20.

The area under the graph must be 1, so the y coordinate for the density is 1/20 = 0.05

You want the area shaded.

Bob

Children are not defined by school ...........The Fonz
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