The table shows the number of children per family in a community.

No of children	0	1	2	3	4	5
No of families	3	5	7	4	3	2

(a) Find the : (i) mode ; (ii) third quartile ; (iii) probability that a family has at least 2 children.

(b) If a pie chart were to be drawn for the data, what would be the sectorial angle representing families with one child?