# What is the difference between population standard deviation between second match and first match?

62 views

Run scored by Murali, Shikhar, Rahul, Virat, Ajinkya, Hardik, Dinesh, Ashwin, Shami, Ishant and Umesh in 1st match are :
33, 24, 19, 21, 41, 39, 37, 47, 38, 29 and 26 respectively.
Run scored by Murali, Shikhar, Rahul, Virat, Ajinkya, Hardik, Dinesh, Ashwin, Shami, Ishant and Umesh in 2nd match are :
13, 44, 19, 93, 41, 76, 33, 44, 29, 11 and 7 respectively.
What is the difference between population standard deviation between second match and first match?

posted Aug 30, 2018

17.19

First match scores: 33, 24, 19, 21, 41, 39, 37, 47, 38, 29 and 26
Total Numbers = 11
Sum = 354
Mean (Average) = 32.18
Population Standard Deviation = 8.61

Second match scores: 13, 44, 19, 93, 41, 76, 33, 44, 29, 11 and 7
Total Numbers = 11
Sum = 410
Mean (Average) = 37.27
Population Standard Deviation = 25.80

The difference between Population Standard Deviation: 25.80-8.61=17.19

answer Aug 30, 2018

Similar Puzzles

Raghav scored below runs in his last 7 innings
13, 38, 3, 29, 14, 68, 17.

Find population standard deviation for his score in last 7 innings?