Question

Find the median of the given data if the mean is 4.5
5,7,7,8,x,5,4,3,1,2

Answer 1

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