pq250800???103.64%k?242000pq?䶯Ӱ죺
?pq??pq?250800?242000?8800(Ԫ)01q0001004֣
pq263700???105.14%k?250800pq?۸䶯Ӱ죺
?pq??pq?263700?250800?12900(Ԫ)11p0111014֣
108.97%=103.64%105.14% 21700=8800+12900 1֣
ֲƷֵܲڱȻ8.97%Զ
21700ԪƷIJƽ3.64%Ӷʹֵܲ8800ԪƷij۸ƽ5.14%Ӷʹֵܲ12900Ԫ 2֣
Ƽ⣨15֣
ƽʹʱx?1057Сʱ/ֻ1֣ ݺϸp?91.5% 1֣ ƽʹʱs??(x?x)2f?53.76Сʱ2֣
n?1?s253.762??3.80Сʱ3n200ʹʱƽ?x?֣
ݵĺϸʳƽ?p?Z?/;2?21֣
?2np(1?p)?n0.915?0.085?1.97%3֣
200
95.45%ʹ䣺1057?7.601049.401064.602֣ ϸ䣺91.5%?3.94%87.56%95.44%2֣ ߡػع⣨15֣
1r=0.75 3֣ 1
֣
2yc=1.26+0.76x 5֣عϵ 3
֣
3Sy0.16 3֣
ˡ⣨15֣ Ҫ㣺1ѼЩݲͳƵ鷽dz飬ѡǷѭԭǷǷƫС4֣ 2ʹѭԭ780Сʱµ۴ʱ䣬ʹµĴʱ䣨4֣
3ʹͬ£780СʱƽλֵƽǶ٣ûи֪Ĵʱ䣬Բö֪4֣
4ͳѧĽǶԻ´ʱ߸Ӧעġ3֣
ãӭĶҵ£WORDĵɱ༭ģҲֱӴӡĶϣ顣Ķѧϰһַdzõϰߣȥǹͬ