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.
Then you should make it your business to read something like this
Uniform Distribution
or this
Uniform distribution (continuous - Wikipedia, the free encyclopedia)
etc. etc.
Do you have a textbook or class notes?