If the 26 english alphabets are taken such that A=1 B=2 C=3 ... Z=26 then find : (i) the mean and median of the numbers corresponding to the vowels.

A, E, I, O, U are the vowels.

A=1

E=5

I=9

O=15

U=21

To find the mean add all the numbers then divide by how many numbers there are.

1+5+9+15+21=41

41:5=8.2

(Mean = 8.2)

To find the median put the numbers in numerical order.

1, 5, 9, 15, 21

Then the number in the middle is your number.

(Median = 9)

*Lucky for you it's an odd number so there is a middle.