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In the Smith family, 50% of people subscribe to cable TV and 60% subscribe to Netflix....

In the Smith family, 50% of people subscribe to cable TV and 60% subscribe to Netflix. Of those that subscribe to cable TV, 80% are Netflix subscribers.

(a) What proportion of Smiths subscribe to both cable TV and Netflix?

(b) What proportion of Smiths subscribe to cable TV or Netflix?

(c) Are the events ”subscribe to cable TV” and ”subscribe to Netflix” independent?

Math   Statistics-And-Probability   
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