The speed vehicles travelled on a local road was recorded for one month.The speeds ranged from 46 km/h to 61 km/h with a mean speed of 56 km/h and a standard deviation of 8 km/h.The quartiles and median speeds were 49 km/h,58 km/h,and 53 km/h.Suppose during the month,one driver was clocked at 25 km/h.Which of the summary statistics might not change if that data value was added to the distribution?
A)Mean,IQR
B)Median,IQR
C)Range,SD
D)Median,range
E)Q1,Q3

Question

Quizplus · Accepted Answer

The median and IQR (Interquartile Range) are resistant to extreme values, so adding a single outlier like 25 km/h is unlikely to change them.

The Speed Vehicles Travelled on a Local Road Was Recorded