LetX

X

represent the full height of a certain species of tree. Assume thatX

X

has a normal probability distribution with a mean of 149.6 ft and a standard deviation of 3.3 ft.

A tree of this type grows in my backyard, and it stands 141.4 feet tall. Find the probability that the height of a randomly selected tree is as tall as mine or shorter

P(X<141.4)=

My neighbor also has a tree of this type growing in her backyard, but hers stands 149.9 feet tall. Find the probability that the full height of a randomly selected tree is at least as tall as hers.

P(X>149.9)=