
1.

Two athletes run several miles each day to train. A random sample of their daily
distances is taken. Use a calculator to find the mean and standard deviation for each athlete. Use
your results to make a conclusion about the data. Round your answers to the nearest hundredth, if
necessary.
Distances
(miles)  Athlete A  3, 6, 5, 8, 4, 8, 6, 8, 9, 5, 5, 6, 7, 7, 3, 5, 5, 6, 7,
10, 3, 9  Athlete B  8, 9, 8, 8, 8, 4, 4, 4, 5, 5, 6, 15, 1, 3, 8, 4, 4, 8,
6, 10, 10, 10   


1.

The heights of ten students were measured in inches. The heights of the girls
are in set A and the heights of the boys are in set B. Compare the spread of the data
for the two sets using the range and the mean absolute deviation. A: 62, 63, 64, 65,
68 B: 62, 64, 64, 65, 70
