Question

Interquartile Range (IQR) Calculation: Each dot in the following dot plot represents the height of one toddler at Mrs. Orlando's daycare. 80 81 82 83 84 85 86 Find the interquartile range (IQR) of the data in the dot plot. cm A. 2 B. 3 C. 4 D. 5

Answer 1

The interquartile range (IQR) for the given data set is 4

How to find the IQR

To find the interquartile range (IQR), you first need to identify the first quartile (Q1) and the third quartile (Q3).

the given data set

80, 81, 82, 83, 84, 85, 86

Q1 = 81

Q2 = 83

Q3 = 85

IQR is the difference between Q3 and Q1.

IQR = Q3 - Q1 = 85 - 81 = 4

So, the interquartile range (IQR) for the given data set is 4