作者will0212 (will)
看板Grad-ProbAsk
标题[理工] ?统计机率问题
时间Mon Mar 16 23:45:56 2009
a NATO aircraft files directly over a building in Kpsovo and fires a single
air-to-surface missile. if the missile hits anywhere within 30 feet of the
building, major structural damage will be incurred. suppose that with
a certain sighting device, the probability function describing the missile's
point of impact is given by
f(x)= 60+x/3600 for -60<x<0
60-x/3600 for 0<=x<60
where x is the perpendicular distance from the building to the point of impact.
find the probability of the event marjor structural damage is incurred.
请问大家这题怎麽算???
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1F：推 MousePads:P(-30 < X < 30) = P(-30 < X < 0) + P(0 < X < 30) 03/17 00:28