Question

If the mode of the data 3,9,6,9,4,3,x-4 is 9 , then find x and mean and median also

Answer 1

3 ,9,6,9, x-4

for mode to be 9 , 9 should be present maximum time

so , x-4 =9

         x =13

mean of the data

3+9+6+4+3+13/6

38/6=6.333......

median:3,4,6,9,9,13

no of observations:6

median =avg of n/2 th and n/2+1 th observation

avg of 6/2th and 6/2+1 th observation

avg of 3rd and 4th observation

6+9/2

15/2

7.5

median is 7.5

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