if the mean of 20 14 16 19 p and 21 is 27 then find the value of p
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mean= some of observations/ no of observations
therefore
20+14+16+19+p+21/6=27
90+p=27×6
p=162-90
p=72
therefore
20+14+16+19+p+21/6=27
90+p=27×6
p=162-90
p=72
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