# Uniform probability distribution

• Nov 25th 2008, 11:16 PM
ansimax
Uniform probability distribution
Okay it says there are 2200 trout in a lake and they are distributed uniformly from 8 - 10 inches and to sketch a uniform probability distribution. I have no idea how, also it says find the probability that i catch one that is between 8.3 to 9.4 inches, if anyone could help with any part of this i'd greatly appreciate it.
• Nov 26th 2008, 02:35 AM
mr fantastic
Quote:

Originally Posted by ansimax
Okay it says there are 2200 trout in a lake and they are distributed uniformly from 8 - 10 inches and to sketch a uniform probability distribution. I have no idea how, also it says find the probability that i catch one that is between 8.3 to 9.4 inches, if anyone could help with any part of this i'd greatly appreciate it.

Do you know what a uniform distribution looks like?

The pdf is equal to 1/2 over [8, 10] and is zero elsewhere.

The required probability is the area under the pdf over [8.3, 9.4]. I get (1/2)(1.1) = 0.55.
• Nov 26th 2008, 09:24 AM
ansimax
ahh I appreciate it but i have no idea how to sketch that
• Nov 26th 2008, 02:58 PM
mr fantastic
Quote:

Originally Posted by ansimax
ahh I appreciate it but i have no idea how to sketch that