4.1ȱݵηе 5
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5.2飬ʩͬˡа˫ڿǰͬǩΪʩͬЧ
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һӦϸعҹг롢ĿбͶꡢ̽衢ʩװгйطɡ棬ߣԼĸ涨
ϸִн蹤ĿзͬļԾͬ¡
ҵֹƽšԭɷй涨⣩Ϊȡ棬ҡͶԷ棬Υ̽ʩװĹƶȡ
ģֶԷҵΥ桢Υ͡ΥΪģӦʱѶԷصģӦϼܲŻͼ졢˾йػؾٱ ڶ
쵼ʹ¸ý蹤ĿĹԱڹ̽ǰСºӦ¹涨 һҷصλҪܻؿۡм֤ȯƷͺôѡлѵȡ ҷصλκӦɼ֧ķá
ҪʾͽҷصλΪװסɥȢżŮĹԼεṩ㡣
ģμпӰ칫ִйҷصλͽֵȻ 壩ҷܻΪżŮͬĿʩͬйص豸ϡ̷ְȾûκҷصλƼְλҪҷĿʩͬ涨IJϡ豸ȡ ҷ
Ӧҵйطɷͳչҵϸִй̽йط롢ߣйؽʩװǿԱ淶¹涨
һκصλ乤ԱҪܻм֤ȯƷͻؿۡôѡлѵȡ
κΪصλӦɶԷ֧ķá
ܻʾΪصλװסɥȢżŮĹԼεṩ㡣
ģκΪصλ֯пӰ칫ִй롢ֵȻ
ΥԼ
һԱΥһΪģչȨޣйطɷ涨赳͡ʹֻ֯ӷģƽ˾ΣҷλɾʧģӦ⳥
ҷԱΥһΪģչȨޣйطɷ涨赳͡ʹֻ֯ӷģƽ˾ΣλɾʧģӦ⳥
Ϊʩͬĸ빤ʩͬͬȷЧ˫ǩЧ
ЧΪ˫ǩ֮ùĿպϸʱֹ һʽķݣɼ˫ִһݣͽ˫ļලλһݡ
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취
Ŀ취ۺһ
һһΪֵΪ100֡
һίԱרͶ˵ʩ֯ƣͶ˵ʩ֯ƱʽͶֱ꣩±е5ݣѧԡԡԡȽԺƳ̶ȽÿݾίԱۺȷȻڸķֵΧרԱֱ֣ȡȡƽΪķС1λ2λ룩ijϴģԼͶƱʽȷ
ֱ һ Ŀ 1ʩ60% 2ƽ沼ã40% 1ʩȼƻã40% 2Ͷƻã20% 3ϹӦƻã20% 4Ҫʩ豸ã20% 1֤ʩ40% 2ȫ֤ʩ30% 3ʩ֤ʩ20% 4֤ʩ10% Ա̵صѵ50%ͽʩ50% Ƽ£ڱ ̵¼¹ա¹רȣ 5ݷֵĺϼƼΪͶ˵ļ÷֡ Ͷ˵ļܵ÷ֲ70ֵģίԱӦ˵ϸɣü겻ͨͶļٽڶꡣ
ڶΪֵΪ100֣³ע⣬С2λ3λ룩
һۡ 1۵ȷ
оЧУЧ۵ļAȷۣȡȥ۸ߵBҺͱ۵͵CҺЧ۵ƽֵΪۣB=A40%C=A10%BCȡС룩
2۵
ۺڲۼЧУиԤɱֵ1%Ԥɱֵ2%ģñȥµͶ걨ȡֵΪۡһΣѭͶ걨۾ȥ۲
3۵ȷ
۸D%ΪۡDͨǩİ취ֵȷ
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