SOLUTION: A driver has 3 routes to get his produce from factory to ;the port. He uses route 1; 45% of the time, route 2 ; 35% of the time and route 3; 20% of the time. There is a 70% proba

Question 1192746: A driver has 3 routes to get his produce from factory to ;the port. He uses route 1; 45% of the time, route 2 ; 35% of the time and route 3; 20% of the time. There is a 70% probability of encountering traffic jam on route 1, 40% probability of encountering traffic jam on route 2 and 50% probability of encountering traffic jam on route 3.
i)what is the probability that this driver is in a traffic jam travelling from the factory to port?
I did the following but I don't know if its correct:
.45*.7+ .35*.4+.2*.5
Answer by ikleyn(52777) (Show Source): You can put this solution on YOUR website!
.

It is correct.

Your formula is correct.

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