作者Laoda245566 (草莓獸)
看板Statistics
標題[問題] uniform probability distribution
時間Mon Dec 9 15:47:22 2013
1. Delta Airlines quotes a flight time of 2 hours, 5 minutes for its flights
from Cincinnati to Tampa. Suppose we believe that actual flight times are
uniformly distributed between 2 hours and 2 hours, 20 minutes.
a. What is the probability that the flight will be no more than 5 minutes
late?
b. What is the probability that the flight will be more than 10 minutes late?
a.我的算法125-120/20=0.25 但是答案0.5
b.140-130/20 答案0.25
請問錯在哪??
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1F：推 koai:1.(125＋5－120)/20=0.5；2. 1-(125＋10－120)/20=0.25 12/09 16:26
2F：→ Laoda245566:不好意思 可解釋一下嗎?? 12/09 17:04
3F：推 koai:1.誤點不超過5分鐘；2.誤點超過10分鐘！ 12/09 17:25