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Measures of Central Tendency

Measures of Central Tendency. Mean – Average My mean teacher gave me a bad average Mean is best when there are no outliers. Median – Middle m ed i an – mi ddle Median is best when there are outliers. Mode – Most mo de – mo st

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Measures of Central Tendency

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  1. Measures of Central Tendency

  2. Mean – Average • My mean teacher gave me a bad average • Mean is best when there are no outliers. • Median – Middle • median – middle • Median is best when there are outliers. • Mode – Most • mode – most • Mode is best when the information is not quantitative (when it’s names).

  3. Range • Not a measure of central tendancy. • High – Low • Shows you the spread of the information.

  4. 1. The following are the test grades for 1st Period: 38, 110, 64, 81, 77, 94, 68, 58, 14, 82, 65, 96, 58, 94, 110, 98, 88, 98, 100, 84, 94, 63, 89, 100, 103, and 84. Find the mean, median, mode, and range of the data. Which measure of central tendency is best?

  5. 1. The following are the test grades for 3rd Period: 91, 100, 87, 100, 85, 60, 85, 91, 104, 64, 67, 82, 42, 71, 92, 86, 93, 88, 94, 96, 51, 97, 101, 86, 94, and 110. Find the mean, median, mode, and range of the data. Which measure of central tendency is best?

  6. 1. The following are the test grades for 5th Period: 110, 106, 93, 91, 59, 45, 81, 92, 97, 80, 97, 23, 86, 86, 84, 46, 98, 94, 56, 93, 71, 100, 14, 101, 96, 92, 97, 47, and 83. Find the mean, median, mode, and range of the data. Which measure of central tendency is best?

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