Question

find the arithmetic mean of the following table. Marks obtained: 70,58,60,52,65,75,18. No.of students:3,5,4,7,6,2,3

Answer 1

Answer:

The arithmetic mean of the marks is 56.857

Step-by-step explanation:

$\frac{70+58+60+52+65+75+8}{7}$

=$\frac{398}{7}$

=56.8571428571