The mean of the following set of numbers (12, 4, 13, 20, 4, 10, 14) is:
a. 4.
b. 10.
c. 11.
d. 17.
ANS: C
The mean refers to the sum of the scores divided by the number of scores being summed. The sum of scores in this example equals 77. Seventy-seven divided by 7, the number of scores, equals 11.
Four occurs most often in the list and is therefore the mode.
Ten is an incorrect answer. The mean refers to the sum of the scores divided by the number of scores being summed.
Seventeen is an incorrect answer. The mean refers to the sum of the scores divided by the number of scores being summed.
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