Question

Look at the following frequency distribution table and answer the following.

Class Interval 15-20 20-25 25-30 30-35 35-40 40-45 45-50

Frequency 10 30 50 50 30 6 4

a) Write the lower limit of first class interval?

b) Determine the class limit of fourth class interval?

c) Find the class mark of the class 45-50

d) Determine the class size.​

Answer 1

Answer:

15 20 20 25 30 35 40 10000 30,000 50000 30064