SOLUTION: Use the range rule of thumb to approximate the standard deviation. 2, 6, 15, 9, 11, 22, 1, 4, 8, 19 A)2 B)6.8 C)5.25 D)6.3

Algebra ->  Probability-and-statistics -> SOLUTION: Use the range rule of thumb to approximate the standard deviation. 2, 6, 15, 9, 11, 22, 1, 4, 8, 19 A)2 B)6.8 C)5.25 D)6.3      Log On


   



Question 1032849: Use the range rule of thumb to approximate the standard deviation.
2, 6, 15, 9, 11, 22, 1, 4, 8, 19
A)2
B)6.8
C)5.25
D)6.3

Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
C)5.25.
The range rule of thumb says that the range of a data set is about four times the standard deviation.
The range is 22 - 1 = 21, thus the standard deviation is around 21/4 = 5.25.