Marks =Number of students
0-20=5
20-40=11
40-60=19
60-80=11
80-100=4
Find the mid-values of each class and calculate the arithmetic mean of the above distribution
Answers
Answered by
3
Answer:
arithmetic mean = sum of observation ÷ no. of observation
= 5+11+19+11+4 ÷ 5
= 50÷5
=10
Answered by
2
Answer:
10,30,50,70,90 is mid value and arithmetic mean is 20
Similar questions