Question

Calculate the mean of the scores of 20 students in mathematics test:

Class 10-20 20-30 30-40 40-50 50-60
Frequency 2 4 7 6 1​

Answer 1

Answer:

2

Step-by-step explanation:

because there are two scores of 20

hope it will help you

Answer 2

Answer:

35.72 I hope you like this answer