The average amount of time a person spends shopping for groceries in a week is normally distributed with a mean of 60 minutes and a standard deviation of 19 minutes.

1. What is the probability that a randomly selected person shops for groceries for less than 50 minutes in one week?
2. What is time at the 90th percentile for minutes spent shopping for groceries in a week?
3. SupposeY=2x+4
4. Y=2x+4converts the time a shopper spends shopping for groceries in a week to the number of items bought.What is the mean and standard deviation for the number of grocery items purchased in a week?