Q5 of 10 Page 56

Observe the given frequency table and write the answers to the following questions.


(1) About how many families does the table give data?


(2) How many families have 3 members?


(3) How many families have 5 members?


(4) How many families have the maximum number of members?


(5) How many families have less than 4 members?

(1) No of families, N = Sum of all frequencies = 1 + 3 + 5 + 6 + 7 + 5 + 4 = 31


(2) No of families having 3 members = Frequency of family having 3 members = 5


(3) No of families having 5 members = Frequency of family having 5 members = 7


(4) No of families having maximum no of members = Frequency of family having 7 members = 4


(5) No of families having less than 4 members


= No of families having either 1 or 2 or 3 members = 1 + 3 + 5 = 7


More from this chapter

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3

The ages (in years) of 40 children in a class are given below. Prepare a frequency table for this data


 4

The heights in centimetres of 30 children in a class are given below. Present the data in a frequency table.

 6

The blood groups of the persons who had donated blood at blood donation camp are as follows.


Use this information to complete the table below.



(1) Which blood group has the smallest number of donors?


(2) Which blood group has the most donors?


(3) How many donors are of the ‘B’ blood group?


(4) What was the total number of donors at the camp?

 1

The frequency table of the ages of 40 students in a class is given below. Find their mean age.