A survey of registered voters was conducted to study the relationship between political party and opinion on climate change. The table below contains data gathered in that study.

Climate Change

Party	Non-issue	Serious concern	Total
Democratic	80	420	500
Republican	300	200	500
Independent	100	100	200
Total	480	720	1200

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Suppose one voter is selected at random. What is the probability the voter is Republican or thinks climate change is a serious issue?

Suppose one voter is selected at random. What is the probability the voter is Republican or thinks climate change is a serious issue?

1.0167

0.1667

0.8750

0.8500