## Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Arranging the values in ascending order, we have: Minimum = 14.6 Maximum = 19.8 Median is the middle value=16.3 $Q_{1}$ is the median of values below median or at 25% of values, hence: $Q_{1}$ = (14.6+15.5)/2 = 15.05 $Q_{3}$ is the median of values above median or at 75% of values, hence: $Q_{3}$ = (18.2+19.8)/2 = 19 IQR = $Q_{3} - Q_{1} = 19-15.05 = 3.95$