Math, asked by ayeeshanoor343, 3 months ago

If the mean of 10 observation is 12 and the mean of first 6 observation is 13.find the mean of remaining 4 observation?

Answers

Answered by chemistrywala

1

x1+x2+.....+x10 = 120

x1+x2+.....+x6=78

so ,, x7+x8+x9+x10 ==120-78

Mean == 120-78/4== 11

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