Page 276 - ABCTE Study Guide_Neat

B Median

C Mode

D Range

Answer

Choice A is the correct answer. The mean of this set is equal to the sum of the values in the set, forty-five,
divided by the number of values in the set, nine. So the mean is five. The median of the set is the middle
number when the set is ordered. The ordered set is {1, 2, 3, 5, 6, 6, 7, 7, 8}, which has a median of six.
The mode of the set is the value that occurs most often. The set has two modes: six and seven. The
range of the set is the difference between the greatest and least values in the set. The range is eight
minus one, or seven. The least of these measures is the mean, which is five.

Review

• The mean of a set of data is the arithmetic average.

• The median of a set of data is the value in the middle of the set.

• The mode of a set of data is the value that occurs most often.

• The range of a set of data is the difference between the greatest and least value in the
set.

Recommended Reading

Geometry Demystified. (Stan Gibilisco): McGraw-Hill Professional, 2003.

Geometry. (Ray Jurgenson and Richard G. Brown): Houghton Mifflin, 1999.

Schaum's Outline of Geometry . (Barnett Rich, et. al.): McGraw Hill, 1999.

Standard Deviants: Geometry DVD 2-Pack. (Flavia Colonna and Rebecca Berg): Cerebellum Corporation,
2000.

Mathematics: From the Birth of Numbers. (Jan Gullberg): W.M. Norton & Company, 1997.

Foundations and Fundamental Concepts of Mathematics. (Howard Eves): Dover Publications, 1997.

Mathematics for the Nonmathematician. (Morris Kline): Dover Publications, 1985.