The first quartile of a data set is 32, and the third quartile is 52. One of these values in the data set is an outlier. Which of the following is this?

A23
B3
C63
D83

Verified Answer :

As we know that the formula of outlier is 
IQR = Q3 - Q1
 = 52 - 32
 = 20
52 + 1.5(20) = 82...
 so anything above 82 is an outlier
now
32 - 1.5(20) = 2.
..anything below 2 is an outlier

so...the 83 is outlier
so correct option is D 
hope it helps

Answer:  D. 83

Explanation:

Given: The first quartile of a data set is \(Q_1=32\), and the third quartile is  \(Q_2=52\).

The formula of to calculate the interquartile range is :-

\(IQR= Q_3 - Q_1= 52-32= 20\)

 The lower limit of interval for the data having no outlier :-

\(Q_1-1.5(IQR)=32-1.5(20) = 2\)

The upper limit of interval for the data having no outlier:-

\(Q_3+1.5(IQR)=52+1.5(20) = 82\)

Since 83 is the value which lies outside the interval or greater than the upper limit.

Therefore, outlier for the data = 83.