Question

the age of girls in a class are given below. Find their mean age.
Number of girls=10,12,15,8,5
Age in years= 17,18,16,14,15
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Answer 1

Answer:

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Answer 2

Answer:

Age in years => 14 15 16 17 18

Number of girls=> 8 5 15 10 12

mean = sum of girl's number / number of age

= 8 + 5 + 15 + 10 + 12 / 5

= 50/5

= 10

now, the mean girls is 10 years.