Which of the following is the mean of the set data below?
30, 29, 28, 30, 24, 12, 26, 33, 25, 23
30
21
27
26
Correct Answer : D
The mean is the total divided by the number of elements in the data set. From the given data set:
Total=30+29+28+30+24+12+26+33+25+23=260
Number of items, N=10
Mean=total/N=260/10=26
The mean is 26.
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