一道概率题,看有没有人能做出来设某仪器主要由A,B,C三个元件组成.一个宇宙射线的粒子击中元件A,B,C的概率分别为 0.1,0.2,0.3,元件被击中后就会发生故障.当元件A发生故障或元件BC都发生故障

来源:学生作业帮助网 编辑:作业帮 时间:2024/09/05 05:12:14
x_?g3,]5ˇѡ`1,WHtk d}G83͎U7jEoYRh@O<5_>M:OIZzK=a6i廭aQ)hjdW#d~Z +EeSP+(zĞOa 6|q Ic~Ŭ?’-{c`a$NT=5 B5YRլ-PS>_\fY-,,AbN 'ֳ\x9ʊr>P>2Ph=^RP)P&hx..Y{8С$tϘG{6Y[Hw<H9rm"NiRjBERS5eUvb{@ʞ$bC3ZOdb>K{C@1<˰UFQ#J~^,O[+jc Fj욵Mz f;{`dba< , ]O^wv֞>7GA.ov ٶIy,p X@ ~ 33ǓGߏǿl.ꈵYrpXfUڻC6 cN~ C\қhAy#AJjP @A-+Fspě656y+cWA8 Y#l'v!{ SL7YkvtC*ݶ.Bf Ӆ7sFA+vP-ߢ-bBlf%POl=kK6SZwH8/1|{OPmM.`\` |ڡ> (@(}}w|tzB1~G . *F[YVqJbWPkEC'Q ШDJ""jE D("QvkM{+VfE7MY@lWL4`%:$- 2INjTZN{L胇`+E?Id&)ᷥku*j3Vbuz 6 5 Jm>cyǡ\RoENR6E@_rɏG,}*#j]|@`AAoҼ&XS+j) ZW0x!jGz+R ȣރw;(`=*z=}Žfѱˆ@VV*kPtw+`^ǟkH]h;=)51K%zc+C^;)Uk ը} :#EHbJ.~+ - WP~-*@3o0> {щvfͿt^K߲ Haم+X-DbJk'ZL{€pBj . |oҬ@g;RF[28Y0vٵ^˫4i5쨧F!Aޥ65nAGW CMlk^^Ψ{:l"Y_jakiEӮ'"}UpiyrE7ЅE?6Z2Z;Py $z ~ v=7mDK"n뷴ğe-U 5>^)Cq%gpGn>L62@`?u,qKz@{wdX g2j[/[Zs k Qu/;ybP hר X}/@, E1YE]6Ul,YOB˥k}9 h\݉3z.Y\^,C p%\y?x!H|H#ZFi IEްDBmG;G1VsbhpW0 /7Z|4v sQ4a-crz~C/1 J\oK ?ܰchCy1 iC7$dGh gᾆ3}5aSC\'[NO#FoK>ox潡=1?M!WxO@2)Ь邽"NKZlHШFkrl^\Z^S`?Ip?R=tf:M :fS )&ήêk$ +b2:m_{ޮ{Wщ~EzGY-JʧM5PgpMK_" K`!}y6L#iR Qqj9ʟ=aڕ^uqn uTFϱvHO~Njh\E H.`,7#@,II=؃W ^ ݸO >!?!?(#$\F!2f7Q˴K~(hɇxZ7YX7إ?S@(ӰNu=HeQpPv3= rZ LirHG>Œ|w;(VXԵi#InKZka77+%k 6~4RMTok+[ jP8¡ .-,m1O_D|_)}F0HZI[@2ZA&` %}X~KuDZOW#sz\̞&|! 1v5K?Vi~1N܃ʔczOLP{³z LE]RO [(Fҥ\Łpڗ ;m`)( ,lb Bmڂkf񔓯%?fV Go&P8d_WpI,jM@z ;.F` ^TqGQ2mrURRs` .NCْrMO[XL~x Yk hdz]*g:x4@0J@`k@ / J;!D^qs@_.:1spyESDh'V$j` ?]=h_ZK~@:"`T -852`%oG(RsS`z*鏫!PBR:pwK 9V ЕF'ʢTW#=Ѱz7"gTll/Klv([$7Yھ}%4Q/b}%8MqHO]qib ̑D֞w.ea m=^\lYk`HK:u& E6&&HW&2feĽ*r$_'v\jz2:Q0-N,#t\SUMIkVSxX!1y&1X4@G)," !sOY6a֋<ϥWjp`WP 4x;.=E<58FMKtǯZ<2x}RuO5GttI7ex!ҡ`#\5+$pVF]F@~!cj TC7O)+SyA{.&=L4N CCq%ֱ-{TD= qDٽr%6XpFޚ؄E tiZR׸i$2~ PN%^4RGVJg?N L0G>gԞ]ݳ@Y/[L %ҭ[vz!`zx_=Vޔ Pȳ7o=]1tZ&q(K(W?7 m0\̡7 dAqK)+'!$Xjp2Ő/<(% '~)[IFY"gm#Gj[c4TwJMb;,($d+Ո_o*Ұh*b L{=̓E[p]ԷyD5%^.jF]&&ntT{hE /#! ަ