Q. Find the standard deviation for the following data:
4 8 11 17 20 24 32
3 5 9 5 4 3 1

 5310  207 Statistics Report Error

Answer: 6.77

Solution:

4 3 12 -10 100 300
8 5 40 -6 36 180
11 9 99 -3 9 81
17 5 85 3 9 45
20 4 80 6 36 144
24 3 72 10 100 300
32 1 32 18 324 324
Total 30 420 1374

,

Therefore,
Hence, variance


and Standard deviation