For the month of June in Chicago 40% of the days ar cloudy. Also in the month of June ,24% of the days are cloudy and rainy a) What is the probablity that a randomly selected day in June will be rainy if it is cloudy?
b) What is the probablity that the cubs will win the world serious?
2007-03-28 17:28:41 · 3 answers · asked by elastt 1 in Science & Mathematics ➔ Mathematics
a) .24/.40=.6
b) 100%
2007-03-28 17:33:01 · answer #1 · answered by bruinfan 7 · 0⤊ 1⤋
a) There are 30 days in June, so 0.4(30) = 12 days that are cloudy. 0.24(30) = 7.2 days are both cloudy and rainy. I guess the 24 was just an approximation, but we'll go along with it. So 7.2 of the 12 cloudy days are rainy. So the probability that a cloudy day will be rainy too is 7.2/12 = 0.6
b) Surely, the problem isn't because they can't spell "series", is it?
2007-03-28 17:45:11 · answer #2 · answered by Anonymous · 1⤊ 0⤋
a) 0.24 / .40 = .60
b) 0.0000000...01 %
2007-03-28 17:57:40 · answer #3 · answered by Anonymous · 0⤊ 0⤋