Based on the calculations, the mean for this data set is equal to: B. 12.75.
What is a mean?
A mean refers to a term that is used to describe a ratio of the sum of the total number in a data set to their frequency.
How to calculate the mean?
Mathematically, the mean for this data set would be calculated as follows:
F(x) = 10 + 15 + 14 + 8 + 18 + 11 + 12 + 12 + 10 + 10 + 17 + 16
F(x) = 153.
Substituting the parameters into the formula, we have:
Mean = [F(x)]/n
Mean = [153]/12
Mean = 12.75.
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