Question-
A popular retail store knows that the purchase amounts by its customers are a random variable that follows a normal distribution with a mean of $30 and a standard deviation of $9.
What is the probability that a randomly selected customer will spend between $20 and $35 at this store?
Additional information-
This question related to Basic Statistics and it is about compute the probability of finding customers who spend between $20 to $35 in a store. The computation has been given in the solution.