the table shows the total amount of rain fall for bay city in January, February, and march the has data from last year and this year
January last year=5.3
February last year=1.6
march last year=2.4
This year
January=7.0
February=3.3
march=2.0
What's the difference between last years mean for these three months and this years?
To find the mean for last year, we add up the total rainfall for January, February, and March and divide by 3:
Mean for last year = (5.3 + 1.6 + 2.4) / 3 = 3.1
To find the mean for this year, we add up the total rainfall for January, February, and March and divide by 3:
Mean for this year = (7.0 + 3.3 + 2.0) / 3 = 4.1
The difference between last year's mean and this year's mean is:
4.1 - 3.1 = 1.0
Therefore, the difference between last year's mean and this year's mean for the total rainfall in January, February, and March is 1.0 inches.