LetX

X

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

X

has a normal probability distribution with a mean of 76.8 ft and a standard deviation of 63 ft.

Find the probability that the height of a randomly selected tree is between -61.8 ft and 171.3 ft.

P(-61.8 <X< 171.3) =

Enter your answer as a number accurate to 4 decimal places.