The data for Exercise 2.64 was this set of systolic blood pressures:
110, 123, 132, 150, 127, 118, 102, 122
a. Find the mean and standard deviation for these data.
b. What is the variance for these data?
Exercise
A set of eight systolic blood pressures follows:
110, 123, 132, 150, 127, 118, 102, 122
a. Find the median value for the dataset.
b. Find the values of the lower and upper quartiles.
c. Find the value of the interquartile range (IQR).
d. Identify any outliers in the dataset. Use the criterion that a value is an outlier if it is either more than 1.5 × IQR above Q3 or more than 1.5 × IQR below Q1.
e. Draw a boxplot of the dataset.