Question 1 - Measures of Dispersion — sample variance and sample standard deviation with corrected data Practice

Question 1

00:00Est. 3 min

Marks:+4.000.00

The mean and sample variance of the data set consisting of

10

observations is

22

and

81

respectively. Later it is noted that one observation

20

is wrongly noted as

15

. What is the sample standard deviation of the original data set? (Enter the answer correct to two decimal accuracy)

Integer answer

Hard Difficulty

16 July 2023

Your answer