Question 5.70
40. Here is a tale of two cities: Portland, Oregon, and Montreal, Canada. The average monthly precipitation (in inches) of these two cities is given in the table below.
| Month | Portland | Montreal |
|---|---|---|
| January | 5.4 | 2.8 |
| February | 3.9 | 2.6 |
| March | 3.7 | 2.8 |
| April | 2.5 | 2.9 |
| May | 2.2 | 2.7 |
| June | 1.5 | 3.3 |
| July | 0.6 | 3.4 |
| August | 0.9 | 3.6 |
| September | 1.5 | 3.3 |
| October | 3.1 | 3.0 |
| November | 5.5 | 3.5 |
| December | 5.9 | 3.4 |
234
Calculate the mean and standard deviation of the monthly average precipitation data for each city. What can you conclude about precipitation in these two cities from these means and standard deviations?