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Answers
Answered by
15
.....ANSWER IS 8.1....
......EXPALINATION. IN THE ATTACHED PHOTO. ....
,,,,,,HOPE IT WILL HELP. ...
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Answered by
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 =
= 162/20
= 8.1
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