Let represent the full height of certain species of tree. Assume that is normally distributed with a mean of 41.5 feet and a standard deviation of 39.2 feet

Question

FFind the probability that the full height of a randomly selected tree is greater than 49.3 feet. 

 =

Answer 1

z= (49.3- 41.5)/39.2 = 7.7/39.2 = about .19643

use z tables or a z calculator to find P(t>49.3)=.42214= 42.214% probability it's taller than 49.3 feet