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 How many children have no brothers or sisters?
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?
Following data gives the number of children in 40 families: 1, 2, 6, 5, 1, 5, 1, 3, 2, 6, 2, 3, 4, 2, 0, 4, 4, 3, 2, 2, 0, 0, 1, 2, 2,4,3,2, 0, 5, 1, 2, 4, 3, 4, 1, 6, 2, 2. Represent it in the form of a frequency distribution, taking classes 0-2,2-4, etc.