Question

The weight of softballs is uniformly distributed over the interval of 8 to 12 ounces, inclusively. what is the probability that a randomly selected softball will weigh between 13 and 15 ounces?

Answer 1

We wil use the density function of the uniform distribution:

`f(x)=(1)/(b-a)\int_a^xdy`
Using the given values: a=8,b=12, w get:

`P(13\leq X\leq15)=(1)/(12-8)\int_(13)^(15)dy\\ =(1)/(12-8)*0=0`
the probability is zero then.