How to find the standard deviation.
Public transportation as well as the automobile are two methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.
|
Public Transportations:
|
28
|
29
|
32
|
37
|
33
|
25
|
29
|
32
|
41
|
34
|
|
Automobile:
|
29
|
31
|
33
|
32
|
34
|
30
|
31
|
32
|
35
|
33
|
Calculate the sample standard deviation for each method