The standard deviation of the set is 5.2
To find standard deviation, we take the square root of the variance.
Do you have a better picture?
The answer is 12
12-(5+3)=4
4+8=12
Uhhh should there be a pic or something?
Joe: 24
John: 2/3 of 24 is 16
Jessie: 24 + 16 = 40; 1/5 of 40 is 8
Jessie makes $8 an hour.