The ages of 5 students are 12, 15, 14, 13 and 16 years. Find the mean age.
A13 years
B14 yearsCORRECT
C15 years
D16 years
GCEMathematicsStatistics2021
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Why the answer is B, and why the others tempt you.
The mean is calculated by summing all values and dividing by the number of values. Sum = 12 + 15 + 14 + 13 + 16 = 70. Mean = 70 ÷ 5 = 14 years.
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