Sai lm khi b qua d liu thng k¨º b¨®ng r Vi h¨¬nh thc c¨¢ b¨®ng ¨¢ n¨¤y nu bn bit c¨¢ch t¨ªnh to¨¢n, c¨® n 90% bn s n tin ca nh¨¤ c¨¢i v¨¤ c¨® th gi¨¤nh chin thng vi t l cc ln nht. Theo lut, v¨¢n cc n¨¤y ch c t¨ªnh trong 90 ph¨²t ch¨ªnh thc, hu ht c¨¢c nh¨¤ c¨¢i u th¨ºm k¨¨o c hi k¨¦p trong bng k¨¨o ca m¨¬nh. Lp k hoch t¨¤i ch¨ªnh hp l kim so¨¢t s vn ca m¨¬nh. Khi t¨¬m hiu l xi¨ºn th¨¬ hi vi¨ºn khng th b qua c¨¢c h¨¬nh thc t cc. B¨ºn cnh ¨®, hi vi¨ºn cng n¨ºn bit c c¨¢ch t¨ªnh l xi¨ºn c¨® li chi ph¨´ hp nht. T l trt xi¨ºn 3 = % trt c 3 + % n 2 con + % n 1 con = 98,5%. T¨¬m hiu k¨¨o th pht l¨¤ g¨¬? Khi i th tn cng, bn c¨® th chn bng qun c¨´ng cht hoc qun ch. K nng chn sau ¨® b¨¤i quyt nh vic gi v¨¢n hay thua. Trung b¨¬nh mi v¨¢n c¨® 10 ¨C 15 lt tn cng. Bit khi n¨¤o n¨ºn , khi n¨¤o n¨ºn r¨²t th¨ºm l¨¤ yu t quan trng. C¨¢ch chi b¨¤i tn kh¨¦o l¨¦o gi¨²p kim so¨¢t nhp v¨¤ l¨¤m kh¨® i th, tng t l thng ¨¢ng k. Creehack. K¨¨o kh¨¢ n gin n¨ºn d gy s nh¨¤m ch¨¢n, mt hng. Lut chi b¨®ng ch¨¤y v hip u v¨¤ lt u y l¨¤ k¨¨o bn ch c¨® th h¨°a tin cc vi nh¨¤ c¨¢i. loi k¨¨o t¨¤i xu h¨°a n¨¤y s khng c¨® thng cc hoc thua cc. C¨¢c trng hp xy ra s nh sau: Tng hp thut ng ¨¢ g¨¤ ph bin t A ¨C Z

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