SOLUTION: The table below gives the ages of a group of pupils born in march: age in years : 13 14 15 16 17 number of pupils: 01 04 02 02 01 what is the mean age of the pupils

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Question 1186899: The table below gives the ages of a group of pupils born in march:
age in years : 13 14 15 16 17
number of pupils: 01 04 02 02 01
what is the mean age of the pupils?

Answer by ikleyn(52814) About Me  (Show Source):
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The table below gives the ages of a group of pupils born in march:
age in years : 13 14 15 16 17
number of pupils: 01 04 02 02 01
what is the mean age of the pupils?
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The mean age of the pupils is the so called " weighted average "


    the mean age of the pupils = %281%2A13+%2B4%2A14+%2B2%2A15+%2B+2%2A16+%2B+1%2A17%29%2F%281%2B4%2B2%2B2%2B1%29 = 14.8 years.    ANSWER

Solved and explained.