#### Question

If 69.5 is the mean of 72, 70, ‘x’, 62, 50, 71, 90, 64, 58 and 82, find the value of ‘x’.

#### Solution

No. of terms = 10

Mean = 69.5

Sum of the numbers = 69.5 x 10 = 695 ……….(i)

But sum of numbers = 72+70+x+62+ 50+71+90+64+58+82

= 619 + x ……(ii)

from (i) and (ii)

619 + x = 695

x = 76

Is there an error in this question or solution?

Solution If 69.5 is the Mean of 72, 70, ‘X’, 62, 50, 71, 90, 64, 58 and 82, Find the Value of ‘X’. Concept: Measures of Central Tendency - Mean, Median, Mode for Raw and Arrayed Data.