a)If the mean of 6,10,12,x,16,18 is 15,find the value of x.
(With whole formulas please)
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Answer:
28= x
Step-by-step explanation:
mean = summition of all frequencies/ total no. of frequencies
15= 6+10+12+x+16+18/6
15×6= 62+x
90= 62+x
90-62= x
28= x
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