Question

from unit 1, lesson 11 what is the iqr? number of branches on 10 - year - old trees a. 5 branches b. 7 branches c. 10 branches d. 12 branches

Explanation:

Step1: Identify Q1 and Q3

In a box - and - whisker 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 plot, Q1 = 7 and Q3 = 12.

Step2: Calculate the IQR

The inter - quartile range (IQR) is calculated as IQR=Q3 - Q1. Substitute Q1 = 7 and Q3 = 12 into the formula: IQR=12 - 7 = 5.

Answer:

A. 5 branches