Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

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

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..

Offline

**bob bundy****Administrator**- Registered: 2010-06-20
- Posts: 8,108

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

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

**Online**

Pages: **1**