Question

34. Find the median of the given data, if the mean is4.5.
5, 7, 7, 8, x, 5, 4, 3, 1, 2

Answer 1

Step-by-step explanation:

mean = sum of all no./ total no.

4.5 = 5+7+7+8+x+5+4+3+1+2/10

4.5 = 42+x/10

4.5 ×10 = 42 +x

45 = 42+x

x= 45-42 =3

now median of 5,7,7,8,3,5,4,3,1,2

in ascending order - 1,2,3,3,4,5,5,7,7,8

median = mean of two middle observation/ 2

= 4+5/2

= 9/2

=4.5