Question

rainfall amounts were recorded for 7 days. using the sample, the average number of inches of rain per day ranges from 0.35 to 0.65. what is the estimated range, in inches, for the total amount of rainfall in a 30 - day period? 29.65 to 30.65 10.50 to 19.50 4.55 to 11.55 2.45 to 4.55

Explanation:

Step1: Calculate the minimum total rainfall

Multiply the minimum average rainfall per day ($0.35$) by the number of days ($30$).
$0.35\times30 = 10.5$

Step2: Calculate the maximum total rainfall

Multiply the maximum average rainfall per day ($0.65$) by the number of days ($30$).
$0.65\times30=19.5$

Answer:

10.50 to 19.50