Computers4all wanted to determine if whether employees working at home or not was independent of where the employee lived (Sydney or Melbourne). To examine this, a survey was completed by 300 employees with the following results.

	Geographic Locations
	Melbourne	Sydney	Total
Work at Home	30	70	100
Don't work at home	80	120	200
Total	110	190	300

One employee is selected at random. Let M be the event that the employee lives at Melbourne, and let W be the event that the employee works at home.

i. What is P (M)?

ii. What is theP (M W)?

iii. What is theP (MU W)?

iv.What is the P (M | W)?