if the mean value of x ,6,8,9 and 12 is 8 ,then the value of x is
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Step-by-step explanation:
MEAN = TOTAL SUM OF THE OBSERVATION
NO OF OBSERVATION
MEAN = x+6+8+9+12 = 8
5
= 29+6+x = 8
5
= 35+x = 40
= x= 5
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