The unemployment rate in the state of Alaska by month is given in the table below:
|
Jan
|
Feb
|
March
|
Apr
|
May
|
Jun
|
July
|
Aug
|
Sep
|
Oct
|
Nov
|
Dec
|
|
8.7
|
8.8
|
8.7
|
7.8
|
7.3
|
7.8
|
6.6
|
6.5
|
6.5
|
6.8
|
7.3
|
7.6
|
a. What is the arithmetic mean of the Alaska unemployment rates?
b. Find the median and the mode for the unemployment rates.
c. Compute the arithmetic mean and median for just the winter (Dec-Mar) months. Is it much different?