Question

26. The following is the frequency distribution table for the ages of the students
in a school. Answer the following questions:
Age (in yrs.)
No. of students
35
5-10
45
10-15
50
15-20
30
(a) What is the class size of the class intervals ?
(b) What is the upper limit of the fourth class interval ?
(c)
What is the lower class limit of the second class interval ?
(d) What is the class mark of 0-5 ?​

Answer 1

Answer:

To do this, divide the frequency by the total number of results and multiply by 100. In this case, the frequency of the first row is 1 and the total number of results is 10. The percentage would then be 10.0. The final column is Cumulative percentage