Question

1.13, Find the number of towns that have rainfall between 2.95 and 9.01 inches.

Short answer

Rainfall percentage below 9.01 inches = 0.12+0.14+0.30 = 0.56.

Step-by-step solution

Below is a table showing annual rainfall in inches for a sample of towns. 

Rainfall (inches)	Frequency
2.95 – 4.97	6
4.97 – 6.99	7
6.99 – 9.01	15
9.01 – 11.03	8
11.03 – 13.05	9
13.05 – 15.07	5

The percentage of rainfall  

Rainfall (Inches)	Frequency	Relative Frequency	Cumulative Relative Frequency
2.95 – 4.97	6	$\frac{6}{50}=0.12$	0.12
4.97 – 6.99	7	$\frac{7}{50}=0.14$	0.12 + 0.14 = 0.26
6.99 – 9.01	15	$\frac{15}{50}=0.30$	0.26 + 0.30 = 0.56
9.01 – 11.03	8	$\frac{8}{50}=0.16$	0.56 + 0.16 = 0.72
11.03 – 13.05	9	$\frac{9}{50}=0.18$	0.72 + 0.18 = 0.90
13.05 – 15.07	5	$\frac{5}{50}=0.10$	0.90 + 0.10 = 1.00