The most frequently used measures of central tendency for quantitative data are the mean and the median. The following table shows civil service examination scores from 24 applicants to law enforcement jobs:

83748579

82677870

18936427

93988278

68828399

96629358

Using Excel, find the mean, standard deviation, and 5-number summary of this sample.

• Construct and paste a box plot depicting the 5-number summary.

What is the interpretation of the standard deviation?

• Does the dataset have outliers? If so, which one(s)?
• Would you prefer to use the mean or the median as this dataset's measure of central tendency? Why?