For 2 variables use

P	Q	Term 1	Term 2
o	0
o	1
1	o
1	1

For 3 variables use

decimal	p	q	r	Term 1	Term 2
0	0	0	0
1	0	0	1
2	0	1	0
3	0	1	1
4	1	0	0
5	1	0	1
6	1	1	0
7	1	1	1

Question 1 Draw the table for 4 variables