Question

# A.) What is the standard deviation of the following: 50, 46, 44, 36, 44, 48 Round...

A.)

What is the standard deviation of the following: 50, 46, 44, 36, 44, 48

Round to 2 decimal places as needed.

B.)

What is the standard deviation of the following: 46, 36, 46, 30, 36, 29

Round to 2 decimal places as needed.

C.)

What is the standard deviation of the following: 15, 50, 29, 10, 21, 12

Round to 2 decimal places as needed.

A) First we have to calculate sample mean. Now, We have to construct below table to compute standard deviation (sd)

 X X- (X- )2 50 5.33 28.4089 46 1.33 1.7689 44 -0.67 0.4489 36 -8.67 75.1689 44 -0.67 0.4489 48 3.33 11.0889 Total 117.3334

Sample standard deviation (sd) is calculated using below formula Population standard deviation() is calculated using below formula Using above approach, we can compute sample and population standard deviation for B and C data

B) Sample standard deviation (sd) = 7.44 and population standard deviation = 6.79

C) Sample standard deviation (sd) = 14.99 and population standard deviation = 13.68

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