Question

Lat question of the day!!!!!! Help once again pls cause the horrid monster math is back.

Data are collected about the amount of time, in minutes, each band member spends practicing. How does a single outlier change the lower and upper quartiles of the collected data?

A:A single outlier causes the values of the quartiles to move slightly toward each other.
B:A single outlier causes the values of the quartiles to move slightly away from the outlier.
C: A single outlier doubles the values of the quartiles.
D:A single outlier does not affect the values of the quartiles.
Is it A,B,C or D???

Answer 1

Answer:
A single outlier does not affect the values of the quartiles.
Explanation:
The interquartile range (IQR) is the difference between the upper (Q3) and lower (Q1) quartiles,
This IQR described the middle 50% of values when ordered from lowest to highest or from the highest to the lowest.
The IQR is considered as a better measure of spread than the range as it is not affected by outliers.
Thus we see that a single outlier does not affect the values of the quartiles.