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- 17/1/13
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Chào mọi người!
Mình có 2 bài tập này mà không biết giải quyết thế nào:
Bài 1:
Four relatives are going to give you money foryour birthday. The amount each relative gives you is equally likely to be anynumber between $0 and $200. The chance that the total amount of money youreceive is at most $300 is ______.
Tam dich la:
\Bài 2:
An airline sells 120 tickets for a flight thatseats 100. Each ticket is non-refundable and costs $200. The unit cost offlying a passenger (fuel, food, etc.) is $80. If the flight is overbooked, eachperson who does not find a seat is given $300 in cash. Assume it is equallylikely that any number of people between 91 and 120 show up for the flight.Rounded to the nearest thousand, on the average how much expected profit(ignoring fixed cost) will the flight generate?
Nhờ mọi người gợi ý cho cách giải. Cảm ơn.
Mình có 2 bài tập này mà không biết giải quyết thế nào:
Bài 1:
Four relatives are going to give you money foryour birthday. The amount each relative gives you is equally likely to be anynumber between $0 and $200. The chance that the total amount of money youreceive is at most $300 is ______.
Tam dich la:
\Bài 2:
An airline sells 120 tickets for a flight thatseats 100. Each ticket is non-refundable and costs $200. The unit cost offlying a passenger (fuel, food, etc.) is $80. If the flight is overbooked, eachperson who does not find a seat is given $300 in cash. Assume it is equallylikely that any number of people between 91 and 120 show up for the flight.Rounded to the nearest thousand, on the average how much expected profit(ignoring fixed cost) will the flight generate?
Nhờ mọi người gợi ý cho cách giải. Cảm ơn.
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