Question 581994: A survey of incoming freshmen at a college revealed that 35% had an IPad,85% had a Facebook account, and 25% had both. What is the probability that a selected freshman has an IPad or a Facebook account? Formula?
Are the two events ( having an IPad, having a Facebook account) mutually exclusive? Explain?
Based on the answer in part a, What is the probabilty that a selected freshmen did not have an IPad and did not have a Facebook account?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A survey of incoming freshmen at a college revealed that 35% had an IPad,85% had a Facebook account, and 25% had both. What is the probability that a selected freshman has an IPad or a Facebook account? Formula?
P(iPad or Face) = 0.35 + 0.85 - 0.25 = 0.95
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Are the two events ( having an IPad, having a Facebook account) mutually exclusive? Explain?
No; there are folks that have both.
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Based on the answer in part a, What is the probabilty that a selected freshmen did not have an IPad and did not have a Facebook account?
P(not iPad AND not Facebook) = 0.65 + 0.15-0.75 = 0.05
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Cheers,
Stan H.
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