Find the 5number summary and construct a boxplot for the dat

Find the 5-number summary and construct a boxplot for the data: 20, 30, 40, 21, 15, 38, 75, 22, 34, 28, 23, 36, 19 23, 26, 18, 16, 25, 13, 15, 18, 28. Identify any outliers by calculating lower and upper fence.

Solution

Arrange the data in ascending order.

13,15,15,16,18,18,19,20,21,22,23,23,25,26,28,28,30,34,36,38,40,75

Minimum = 13

Maximum = 75

Median = 23

Q1 = 18

Q3 = 30

Outlier =75