Math, asked by 9460766546, 4 months ago

Find the mean of the following : AGE 12 13 14 15 Number of students 1 3 9 12

Answers

Answered by yavadrohit1

1

Step-by-step explanation:

Mean = The sum of all observations in the data

$total \: number \: of \: observation$

= 13 + 9+ 12

$4$

= 34

$4$

=8.5

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