Find the median of the given data if the mean is 4.5
5,7,7,8,x,5,4,3,1,2
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Step-by-step explanation:
mean=4.5
mean= sum of observations/number of observations
5+7+7+8+x+4+3+1+2=37+X
number of observations=9
mean=37+X/9
4.5=37+X/9
9×4.5=37+x
40.5=37+X
X=40.5-37
X=3.5
VERIFICATION
37+3.5=40.5
40.5/9=mean
4.5=mean
therefore, median=8+X+4=15.5
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