Question

Find the inter quartile range (IQR) of the data plotted in the given box and whisker plot.

• A. 36
• B. 10
• C. 32
• D. 26

Answer 1

The correct option is B 10

In a box plot ,


the box is drawn from the first quartile to the third quartile and the vertical line inside the box indicates the median.

From the given plot, we get


Lower quartile = 26

Median = 32

Upper quartile = 36

Inter quartile Range (IQR ) = Upper quartile - Lower quartile

IQR = 36 - 26 = 10

Hence, IQR of the given data = 10