the mean of numbers 8,11,13,x,5,y,10 is 12. find the valies of x and y.
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mean = sum of all observations / total observations
by adding these we get 47 + x + y
then divide this by 7 and = 12 mean of numbers
47+x+y/7=12 cross multiply
12*7 = 47+x+y
84-47 = x+y
37= x + y
Hope it will be helpful
monanik05:
Thanku
mention not
But could u get individual values of each term?
then xi and Fi should be given in question
No
it is not given
by the way i got the answer
thanku
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