Question

The following are the marks of 10 students in an examination. calculated airthmeic mean 12,8,17,13,15,9,18,11,6,10.​

Answer 1

Answer:

mean = 12+8+17+13+15+9+18+11+6+10

_______________________

10

=173/10=17.3

Answer 2

Answer:

Your required answer is 11.9

Step-by-step explanation:

Arithmetic Mean = Sum of all marks obtained by students / No. of students

= 12 + 8 + 17 + 13 + 15 + 9 + 18 + 11 + 6 + 10 / 10

= 119 / 10

= 11.9