Question

The marks obtained by students in a maths test out of 20 are given below .Find the mean. 9 , 8, 11, 12, 5, 4, 3,15, 17, 18, 8, 12, 4, 3, 18, 14, 16, 8, 18, 17 with formula​

Answer 1

Answer:

marks obtained by student in maths test out of 20

formula of mean = sum of values all the observations / number of observations .

so according to formula

9+8+11+12+5+4+3+15+17+18+8+12+4+3+18+14+16+8+18+17/20

220/20

ans= 220/20

= 11✓✓ ans