The route used by a certan motorist is commuty to works contains two inter secti

Question

The route used by a certan motorist is commuty to works contains two inter sections with traffic signals .The probability he must ston at the first signal is 0.4 and th second signal is 0.5 where as the probability he must ston at least one of the two signals is 0.6. What is the probability that he must ston at both signals what is the probability that he must stop at only one what is the probability he must stop at second signal, given he had to stop at first signal How many total posible ways are there for him at the two traffic signals with respect to stoping or not stopping.

Explanation / Answer

a) 0.6

b) 0.4 * 0.5 = 0.2

c)

0.5 / 0.9    = 0.555

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