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anonymous
 one year ago
Having trouble with statistics, specifically probability.
anonymous
 one year ago
Having trouble with statistics, specifically probability.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0is there a specific problem or concept you need explained?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A local video store owner is examining his two stores, the one on 29th Avenue and the other on Division. The 29th store does 70% of the dealer's business and the Division store does the rest. In the Division store, 40% of all rentals are DVDs. In the 29th store, 30% of all rentals are DVDs. If a customer is selected at random, what is the probability that she will rent a DVD?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sorry, it's a question on paper, so I had to type it out.

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1what are some ideas you have considered?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1storeA does 70% of the dealer's business storeB does the rest. In B, 40% of all rentals are DVDs. In A, 30% of all rentals are DVDs. If a customer is selected at random, what is the probability that she will rent a DVD? P(storeA and DVD), or P(storeB and DVD)

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1lets imagine we have 1000 people. we seperate them into 2 different rooms: 70% in roomA, and 30% in roomB  we ask the 700 people in roomA if they got a DVD, and 30% of them say yes we ask the 300 people in roomB if they got a DVD, and 40% of them say yes  so, out of 1000 people, how many are there altogether that have a DVD? 7*30, and 3*40 .. 210+120 = 330  330 people out of 1000 have a DVD. so our probability is?
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