Question

The marks of 20 students in a test were as follows. 5, 6, 8, 9, 10, 11, 11, 12, 13, 13, 14, 14, 15, 15, 16, 16, 18, 19, 20 Calculate the mean mark.​

Answer 1

Answer:

12.8

Explanation:

mean= 5+6+8+9+10+11+11+12+13+13+14+14+15+15+16+16+18+19+20/19

mean= 245/19=12.8

Answer 2

Answer:

answer will be 13

Explanation:

I am not sure about the answer