- A11
- B24
- C13
- D12
Step-by-Step Solution
Counting the 1s: positions give 1 appearing 12 times. Hence the frequency of 1 child is 12.
Answer: D) 12
Meera surveyed 30 families in her colony in Jaipur about the number of children per family and got the values below:
0, 1, 2, 1, 3, 2, 0, 1, 1, 2, 3, 1, 0, 2, 1, 1, 2, 0, 1, 3, 2, 1, 1, 0, 2, 1, 1, 2, 3, 0.
If she makes a frequency table, what is the frequency of families having exactly 1 child?
Class 9Collection and Presentation of DataStatistics and Probability
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Collection and Presentation of Data practice questions
More Class 9 Collection and Presentation of Data practice
The runs scored by an Indian batsman in 8 innings were: 45, 0, 78, 45, 12, 78, 45, 100.…A teacher wishes to group test marks (out of 100) of her class into continuous class…Ramesh notes the ages (in years) of 50 members of a club and groups them as 10-20,…An inclusive frequency table has classes 1-10, 11-20, 21-30. To convert these into…The weights (in kg) of 6 students are 38, 42, 45, 40, 50, 36. If these are grouped into…