The following table gives the number of children of 150 families in a village No. of children `(x)` : 0 1 2 3 4 5 No. of families `(f)` : 10 21 55 42 15 7 Find the average number of children per family.

The following data shows the number of children in 20 families Make a frequency table for above data

the numbers of children in 10 families of a locality are: 2,4,3,4,2,0,3,5,1,1,5. Find the mean number of children per family.

In a colony 5 families have 1 child, 7 families have 2 children, 8 families have 3 children and 3 families have 4 children. What is the mode of the number of children.

Two different families A and B are blessed with equal number of children. There are 3 tickets to be distributed amongst the children of these families so that no child gets more than one ticket. If the probability that all the tickets go to children of the family B is (1)/(12) then the number of children in each family is :

The average age of 8 children of a family is 12 year. If age of 7 children are 12, 8, 14, 11, 9, 13 and 15 years respeatively. The age of 8th child is?

The number of children in the families of a village are listed below : 1 2 1 1 2 2 2 3 2 2 2 4 1 2 3 2 2 1 1 0 0 1 2 0 1 2 0 1 2 2 2 2 1 2 3 3 4 2 1 2 Prepare a frequency distribution table.

The following data shows the relation between the number of families and number of children they have. What is the probability of a family chosen at random having at least two children?