?????????λ??3742??????????0.6%
?й???????????????? ??
????5??5????й?????о??????4?·???????????4?·??????????????????4285?/???????????????λ???3742?/??????????????0.6%????????4?·???????????????????????
4?·?????100??????????????????10522?/?????????????0.01%??100???????У?39?????л????????60?????л????μ???1?????л???????
???????????????4?·???3??30??¥?????????????????£??????????з???????????????????г????????????????????????????????????????1%????????????????????????????????????ν??1????????????????????????????????????????Ч????????????г????????????????????г?????????δ??????????仯?????????????????????????????г????????????????????????????????????????????????????嶯????????????????????????????????????????
?????α? ???????
??????????????????????μ?????