Question

1. if the first quartile (q1) is 25 and the third quartile (q3) is 75, what is the iqr?

a. 75
b. 100
c. 50
d. 25

Explanation:

Step1: Recall the formula for IQR

The inter - quartile range (IQR) is given by the formula \(IQR = Q3 - Q1\)

Step2: Substitute the values of \(Q1\) and \(Q3\)

Given \(Q1 = 25\) and \(Q3=75\), then \(IQR=75 - 25\)

Step3: Calculate the result

\(75-25 = 50\)

Answer:

C. 50