I need help with Statistics probabilities questions....
The new transportation bill has a 90 % chance of passing if the Democrats win the election. The democrats have a 60 % chance of winning the election. What is the probability that the democrats will win and the bill will pass?
2006-11-02 04:45:21 · 4 answers · asked by Heather N 2 in Science & Mathematics ➔ Mathematics
you are trying to find the probability that democrats win, and the bill passes. Let A be the event that the demos win, and B be the event that the bill passes. Also recognize that this is a conditional probability question.
We know the following info:
P(A) = .6 "democrats have a 60 %"
P(B|A) = .9 "90 % chance of passing if the Democrats win "
P(A and B) "what the question wants you to find"
the conditional prob formula says that
P(A and B) = P(A) x P(B|A) = .9 x .6 = .54
So there is a 54% of both things happening
2006-11-02 05:14:45 · answer #1 · answered by arik p 2 · 0⤊ 0⤋
90% multiplied by the chance the democrats win 60%.
So .90 x .6 = .54.
There is a 54% chance the democrats will win AND the transportation bill will pass.
2006-11-02 04:50:16 · answer #2 · answered by Anonymous · 1⤊ 0⤋
90%=.90; 60%=.60 so the chances of both events occuring is
.90*.60=.54=54%
2006-11-02 04:47:49 · answer #3 · answered by yupchagee 7 · 1⤊ 0⤋
Life is a bell curve heather.
2006-11-02 04:52:57 · answer #4 · answered by Anonymous · 0⤊ 0⤋