The data

The data set represents the number of cars in a town given a speeding ticket each day for 10 days.

2 4 5 5 7 7 8 8 8 12


What is the IQR?

Correct result:

IQR =  3

Solution:

n=10  Quartiles:  Q1=5 Q2=7 Q3=8  IQR=Q3Q1=85=3



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