1) The values to consider to make the table are the number of children.
The frequencies are the number of times each value occurs.
To find the relative frequencies, we have to divide each frequency by the total amount of households surveyed.
value frequency relative frequency
0 30 0.1 = 30/300
1 45 0.15= 45/300
2 15 0.05 = 15/300
3 60 0.2 = 60/300
4 90 0.3 = 90/300
5 60 0.2 = 60/300
total = 300
2) The stick diagram is: