Question

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

a. 75
b. 50
c. 100
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 \(Q3\)

We are given that \(Q1 = 25\) and \(Q3=75\). Substituting these values into the formula, we get \(IQR=75 - 25\).

Step3: Calculate the result

\(75-25 = 50\).

Answer:

B. 50