<PRE><B>Question 782440</B>
		           Cellphone 	       This Year
 		               Yes  	No	 Total
Own a comput	       Yes	37	8	 45
	                No       38     17	 55
	Total	                75	25	 100

a.	Find the probability a randomly selected family has a cell phone.
Ans: 75/100
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b.	Find the probability a randomly selected family has a cell phone, given that they own a computer.
Ans: 37/46
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c.	Are the events of owning a computer and having a cell phone independent or dependent events?
Check:: P(have cell)*P(own computer) = P(have cell and own computer)
(75/100)(37/100) = 37/100
That is false.
So those events are dependent.
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Cheers,
Stan H.
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