Question

Vani did a survey of the numbers of brothers and sisters for each of the children in her class with the following results:

0, 1, 5, 3, 6, 4, 0, 0, 1, 2, 3, 1, 0, 1, 5, 4, 2, 1, 3, 3, 2, 1, 0, 1

Make a tally of Vani's results.
How many children have no brothers or sisters?
(2 marks)

Answer 1

Tally table of given data:

No. of siblings	Tally marks	No. of children
0	||||	5
1	|||| ||	7
2	|||	3
3	||||	4
4	||	2
5	||	2
6	|	1

(2 marks)

So five children have no brothers or sisters. (1 mark)