Find the value of x if the mean of the following data is 9.
12,5, 3, 18, 10, 17, x, 6, 6. Also, find the range of the data.
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here
mean=9
mean=12+5+3+18+10+17+x+6+6/9
9=77+x/9
9×9=77+x
81-77=x
x=4
mean=9
mean=12+5+3+18+10+17+x+6+6/9
9=77+x/9
9×9=77+x
81-77=x
x=4
Garcy:
no the answer is 4
but I don't know the method
sorry galtise multiplycation kar diya tha
ab follow to kar do
you too
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