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A random sample of marks scored by 20 students in a CAT is listed below. Calculate...

A random sample of marks scored by 20 students in a CAT is listed below. Calculate the sample mean and standard deviation:

29, 26, 13, 23, 23, 25, 17, 22, 17, 19, 12, 26, 30, 30, 18, 14, 12, 26, 17, 18

Select one:

a. 20.50, 5.94

b. 20.50, 5.79

c. 20.85, 5.94

d. 20.85, 5.79

Math   Statistics-And-Probability   
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