A major credit card company has determined that its customers charge an average of $280 per month on their accounts with a standard deviation of $20.
a.What percentage of the customers charges more than $275 per month?
b.What percentage of the customers charges less than $243 per month?
c.What percentage of the customers charges between $241 and $301.60 per month?

Question

Quizplus · Accepted Answer

The Answer of A major credit card company has determined that its customers charge an average of $280 per month on their accounts with a standard deviation of $20.
a.What percentage of the customers charges more than $275 per month?
b.What percentage of the customers charges less than $243 per month?
c.What percentage of the customers charges between $241 and $301.60 per month?

A Major Credit Card Company Has Determined That Its Customers