Find the mean and compare it with the median. Find the standard deviation and compare it with the interquartile range.

For the medical data in Prob. 3

Data from Prob. 3

Represent the data by a stem-and-leaf plot, a histogram, and a boxplot:

Systolic blood pressure of 15 female patients of ages 20–22

156    158    154    133    141    130    144    137

151    146    156    138    138    149    139