Use the normal distribution of fish lengths for which the mean is 9 inches and the standard deviation is 2 inches. assume the variable x is normally distributed. (a) what percent of the fish are longer than 14 inches? (b) if 300 fish are randomly selected, about how many would you expect to be shorter than 8 inches?

Step-by-step explanation:

Given that fish length X is having the normal distribution  for which the mean is 9 inches and the standard deviation is 2 inches.

X : N(9,2)

A)

B) Here sample size = 300

Out of 300 fish we can expect 300(0.3085) to be shorter

i.e. 92.55=93 fish

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse

answer: x=60