if the mean of 5 observations x,x+13,x+15,x+17 and x+20 is 14 find the value of x
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x+x+13+x+15+x+17+x+20/5=14
5x+60/5=14
5x+60=70
5x=10
x=2
5x+60/5=14
5x+60=70
5x=10
x=2
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