CBU recently surveyed 500 first year students on what kind of device they purchased for online class. The table below shows the results of the survey

	Desktop	Laptop	Tablet	No Device
Science	90	30	10	0
Business	80	110	70	5
Arts	10	20	60	15

Using these results determine the probability, as a percentage, of:

Being a science student: Answer%

Purchasing a laptop: Answer%

Being a business student and purchasing a desktop: Answer%

Being an arts student or purchasing a tablet: Answer%

Purchasing a laptop given you are an arts student: Answer%