If the mean of distribution is 6, find p. X-2,4,6,8,p+5
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mean=( x-2+4+6+8+p+5)/5
6=(x+p+21)/5
6*5=x+p+21
30-21=x+p
9-x=p
6=(x+p+21)/5
6*5=x+p+21
30-21=x+p
9-x=p
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