Age group Number of children born

10-19 60

20-24 96

25-29 96

30-34 96

35-39 96

40 or older More than 45

a) What is the value of class interval here? Write down the above table with an equal class interval. [You need not to make them exclusive].

b) Can you find the mean & median and Mode for the above age group?

c) Among Mean, median, mode which one seems superior to you? Provide your justification in support of it.