Question

Questions:Applied Maths

Answer 1

更新1:

Answer: 1.0.4313 2.(a)143/250 (b)45/143

1.An audience rating survey of television broadcasting among married couples reveals that the probability of a woman watching a program of fund raising for charity is 0.16
but the probability of a man watching it is 0.23.However
if a woman is watching it
the probability that her hu *** and is also watching is 0.62.If a man is watching the program
what is the probability that his wife is watching together? 0.16+0.62-0.23=0.55 2.(a) What is the chance that if a ball is now drawn from A it will be red? 4 x3 = 4 9 5 15 (b) If this ball is in fact red
what is the probability that the first o balls drawn are also red? 4 x (3-1) = 2 15 (5-1) 15 I don't know the third one.
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