Question

The mean and standard deviation for the following data, respectively, are:

Size of item	8	9	10	11	12
Frequency	6	10	14	7	4

• A. 10, 1.18
• B. 9.83, 1.18
• C. 9.83, 0.88
• D. 10, 0.88

Hint:

To save time on standard deviation, look at the mean first! Often, calculating the mean accurately allows you to eliminate 50% or more of the options immediately.

Answer 1

The Correct Option is B