Question

In : 3,7,x,9,4,2,y. Where mean is 5 and mode is 4 . Find values of x and y

Answer 1

Solution:

Mean is 5
Mode is 4
Samples are 3,7,x,9,4,2,y

Since our mode is 4 there has a value of 4 in any of the unknown number,
so we assign it to x,

Then we have now 3,7,4,9,4,2,y to get the mean where the value is 5
we find the unknown number y.

If we assign the value 6 to y, we have 3,7,4,9,4,2, and 6.

We add it all,

3+7+4+9+4+2+6=35

35/7=5

Therefore, the value of x is 4 and y is 6.