1?????????????????С???????1???????????????С?????Σ??????????10????????????10???
?????????????????????F11???????????????????????10????????????e?????????????????λ???????????ο???(?????????????????????????)???????????????????????????????????(????????????Щ)
?????????ò?????????2????????????ò????????????????????ò????á?
2????????????????????λ????“?μ?????”????????????????????????о????????????????????×2??????????????0.5?????????????????0.5×2=1????????
3???????????????????????90??????95?????
4????????????????????????и??λ?????????????????????
?????????1V1???????????????????С??????????????????????????????10?????90-10????80???????0????80??????????95???????????????????????????????????????????80??(????????б仯???????)???????????????????仯???????????????
??????????????з???????????????£?
??????2 ??? ????1.8 ???????(90-2)—(1.8×2)=88-3.6=84.4??
???????84??????? ????95????Щ
??????2 ??? ????0.8 ???????(90-2)+(0.8×2)=88+1.6=89.6??
???????89??????? ????90?????Щ
??????????????????????????????
????????????(??????)+???????+??????????+???????????+????