Question

The table shows the precipitation in December, in inches, for Washington state from 2005 to 2013. What was the mean amount of precipitation during this time? Round to the nearest hundredth.
A) 1.97 Inches
B) 2.61 Inches
C) 5.33 Inches
D) 5.98 Inches

Answer 1

Hello,
Please, see the attached file.
Thanks.

Answer 2

Answer : C) 5.33 Inches

The table shows the precipitation in December, in inches, for Washington state from 2005 to 2013.

We are given with 9 values.

number of values =9

To find the mean amount of precipitation during this time we add all the precipitation then divide by number of values

$Mean amount of precipitation = \frac{Sum of precipitation}{number of values}$

$Mean amount of precipitation = \frac{5.98+6.05+7.59 +5.27+ 3.11+7.18+ 2.95 + 7.22+2.61}{9}$

= $\frac{47.98}{9} = 5.32888$

The mean amount of precipitation = 5.33 inches