An anthropologist is looking at the role of fathers in child rearing in the rural Southeast. She asks the fathers how many times a week they feed and diaper their newborn infants. On her first day of work, the anthropologist interviews five fathers and gets the results shown in the first three columns of the following table.In this table, fill in the missing values in the XY column, and then calculate XY.

Father	Feeding (X)	Diapering (Y)	XY
A	1	2	2
B	1	3
C	2	0	0
D	1	5	5
E	3	4

XY =

Fill in the missing values in the Y column of the following table, and then calculate Y.

Father	Feeding (X)	Diapering (Y)	Y
A	1	2	4
B	1	3	9
C	2	0
D	1	5	25
E	3	4

Y =

Fill in the missing values in the X - 1 column and the (X - 1)Y column of the following table, and then calculate(X - 1)Y.

Father	Feeding (X)	Diapering (Y)	X - 1	(X - 1)Y
A	1	2	0
B	1	3	0	0
C	2	0	1	0
D	1	5
E	3	4	2	8

(X - 1)Y =

At the end of the study, the anthropologist had a sample of 250 fathers. She estimates that there are probably 300,000 fathers of young children in the rural Southeast.

Given this information, N =