Question

the figure to the right shows the 10 - driest summers in a region from 1885 through 2004. determine the mean and median inches of rainfall for the 10 years shown. the mean inches of rainfall is inches (round to two decimal places as needed.)

Explanation:

Step1: Identify the data values

The rainfall values in inches are 10.65, 10.67, 10.68, 10.84, 11.56, 11.76, 11.83, 12.15, 12.82, 12.94

Step2: Calculate the sum of data values

$10.65 + 10.67+10.68 + 10.84+11.56+11.76+11.83+12.15+12.82+12.94 = 115.8$

Step3: Calculate the mean

The mean $\bar{x}=\frac{\text{Sum of values}}{\text{Number of values}}$. Here, the number of values $n = 10$. So, $\bar{x}=\frac{115.8}{10}=11.58$

Answer:

11.58