SOLUTION: A shipping department will deliver a product in one, two, three or four days. The probability of delivery in one day is 0.18. The probability of delivery in two days is 0.27. The p

Question 270404: A shipping department will deliver a product in one, two, three or four days. The probability of delivery in one day is 0.18. The probability of delivery in two days is 0.27. The probability of delivery in three days is 0.48. What is the expected number days of delivery?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A shipping department will deliver a product in one, two, three or four days. The probability of delivery in one day is 0.18.
The probability of delivery in two days is 0.27.
The probability of delivery in three days is 0.48.
What is the expected number days of delivery?
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Multiply each "day-number" by its probability.
Then add the products to get the expected value.
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Cheers,
Stan H.
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