Math, asked by smookyqueen, 1 year ago

please do it.....
....no spam.....​

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Answers

Answered by ams68
15

.....ANSWER IS 8.1....

......EXPALINATION. IN THE ATTACHED PHOTO. ....

,,,,,,HOPE IT WILL HELP. ...

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Answered by Anonymous
30

Answer

xi fi xifi

1 1 1

3 2 6

5 1 5

7 5 35

9 6 54

11 2 22

13 3 39

Sum 20 162

Mean = \tt{\frac{\Sigma x_{i}f_{i}}{\Sigma f_{i}}}\\

= 162/20

= 8.1

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