Answer:
Step-by-step explanation:
Given that the random variable X is normally distributed, with
mean = 50 and standard deviation = 7.
Then we have z= 
Using this and normal table we find that
a) 
b) When z=0.02
we get

c) 90th percentile z value =1.645
90th percentile of X 
Use the given functions to set up and simplify
h(8). The answer is −22. Hope this help! :)
Number of muffins sold=9
and number of pizza pies sold=15
The y intercept is 0.025.