If it is compounded annually, this will be 850(1.014)^5 which equals $911.19
Answer: 0.4758
Step-by-step explanation:
Given : Mean : 
Standard deviation : 
Also, the new population of pilots has normally distributed .
The formula to calculate the z-score :-

For x=130 lb .

For x=171lb.

The p-value =

Hence, the required probability : 0.4758
For number 3 add all the numbers and divide how numbers you have
400 trees would be the answer because 382 is higher than 350