Solve. If necessary, round answers to the nearest hundredth.
-The following test scores were recorded for a student: 80, 72, 68, 68, 80, 82. Find the mean, median, and mode.
A)mean: 76 median: 76 mode: 68
B)mean: 76 median: 75 mode: 80
C)mean: 75 median: 76 mode: 68 and 80
D)mean: 75 median: 68 mode: 82

Question

Quizplus · Accepted Answer

Mean: Add up all the scores and divide by the total number of scores. 
(80+72+68+68+80+82)/6=75

Median: Arrange the scores in order from least to greatest and find the middle value. 
68, 68, 72, 80, 80, 82 
Median=(72+80)/2=76

Mode: The mode is the score that appears most often. 
Mode=68 and 80, since they both appear twice.

Therefore, the best choice is C, as it includes all three correctly calculated measures of central tendency.

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