Advertisement Remove all ads

# Solve Any Two of the Following. Find the Mean of the Data Given in the Following Table. - Algebra

Solve any two of the following.

Find the mean of the data given in the following table.

 Class 0-20 20-40 40-60 60-80 80-100 Frequency 6 4 5 7 3
Advertisement Remove all ads

#### Solution

 Class Class Mark (x_1) Frequency  f_1 x_1f_1 0-20 10 6 60 20-40 30 4 120 40-60 50 5 250 60-80 70 7 490 80-100 90 3 270 25 1190

Mean=(∑x_1f_1)/(∑f_1)

=1190/25

=47.6

Is there an error in this question or solution?
Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications

Forgot password?