The ages (in years) of 50 players of a school are given below:

Age (in years) 14 15 16 17 18

Number of players 15 14 10 8 3

Find the mean age.

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Solution

Mean age = $\frac{Σ (f_{i} \times x_{i})}{Σ f_{i}} = \frac{770}{50} = 15.4 years$

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