Find the number of standard deviations from the mean. Round…

Find the number of standard deviations from the mean. Round your answer to two decimal places.The test scores on the Chapter 3 mathematics test have a mean of 62 and a standard deviation of 11. Andrea scored 86 on the test. How many standard deviations from the mean is that?

Solve the problem. Round results to the nearest hundredth.A…

Solve the problem. Round results to the nearest hundredth.A department store, on average, has daily sales of $28,567.95. The standard deviation of sales is $1000. On Tuesday, the store sold worth of goods. Find Tuesday’s z score. Was Tuesday an unusually good day?