Question

the box plot below represents some data set. what is the interquartile range (iqr) of the data? answer attempt 1 out of 2

Explanation:

Step1: Identify Q1 and Q3

In a box - plot, the left - hand side of the box is the first quartile (Q1) and the right - hand side of the box is the third quartile (Q3). From the box - plot, Q1 = 40 and Q3 = 70.

Step2: Calculate the IQR

The inter - quartile range (IQR) is given by the formula IQR=Q3 - Q1. Substitute Q1 = 40 and Q3 = 70 into the formula: IQR=70 - 40.

Answer:

30