A shipment of beach balls with a mean diameter of 28 cm and a standard deviation of 1.3 cm is normally distributed. By how many standard deviations does a beach ball with a diameter of 31.9 cm differ from the mean?

A.) 1

B.) 1.3

C.) 2

D.) 3

Question

Linda Ryan

10 June, 12:44

+1

Answers (1)

Know the Answer?

Jair Hudson · Answer 1

The answer is D. Three standard deviations. Take the mean and add 1.3 until you get the 31.9. It takes 3 times.

A shipment of beach balls with a mean diameter of 28 cm and a standard deviation of 1.3 cm is normally distributed. By how many standard deviations does a beach ball with a diameter of 31.9 cm differ from the mean?A.) 1B.) 1.3C.) 2D.) 3