Question

find the range and interquartile range (iqr) for the monthly rainfall (in millimeters) in seattle based on the box - and - whisker plot below. average monthly rainfall in seattle (millimeters)

Explanation:

Step1: Recall range formula

Range = Maximum - Minimum

Step2: Identify maximum and minimum

From the box - and - whisker plot, minimum = 20, maximum = 200
Range = 200 - 20 = 180

Step3: Recall IQR formula

IQR = Q3 - Q1

Step4: Identify Q1 and Q3

From the box - and - whisker plot, Q1 = 80, Q3 = 140
IQR = 140 - 80 = 60

Answer:

Range: 180, IQR: 60