What is the interquartile range of 86, 72, 85, 89, 86, 92, 73, 71, 91, 82?
1 Answer
May 29, 2017
Explanation:
arrange the data set in ascending order
71x72x73x82x85↑x86x86x89x91x92
the quartiles split the data into 4 groups
the median Q2=85+862=85.5
the lower quartile Q1=73
the upper quartile Q3=89
the interquartile range (IQR)=Q3−Q1
the∫erquarti≤ran≥××x=89−73
the∫erquarti≤ran≥××x=16