Question 1:
X is normally distributed with a mean of 250 and a standard deviation of 40. What value of X does only the top 15% exceed?
Question 2:
Travelbyus is an Internet-based travel agency wherein customers can see videos of the cities they plan to visit. The number of hits daily is a normally distributed random variable with mean of 10,000 and a standard deviation of 2,400:
a) What is the probability of getting more than 12,000 hits?
b) What is the probability of getting fewer than 9,000 hits?