1、2022-12-1412022-12-1422022-12-1432022-12-1442022-12-1452022-12-1462022-12-1472022-12-1482022-12-1492111好好差差不卖不卖买买买买卖卖卖卖不买不买不卖不卖不买不买2，10，01，1 1，00，00，0四种可能的结局四种可能的结局2022-12-14102022-12-14112022-12-14122022-12-14132022-12-14143221LRLLLLRRRR2022-12-14152022-12-14162022-12-14172022-12-14182022-12-141920
2、22-12-14202111好好差差不卖不卖买买买买卖卖卖卖不买不买不卖不卖不买不买2，10，01，11，00，00，02022-12-1421p g sp b s和1p g sp b s+p gp b和2022-12-1422)()|()(spgspgp()(|)()(|)()(|)p gp s gp gp s gp bp s b)|(sgp1p b sp g sp b s 求)/()/(bspgsp和2022-12-1423)()()|(ApABpABp)()|()()/()(BpBApApABpABpp B A2022-12-1424)|()()(1iniiABpApBpnAA,1202
3、2-12-1425且且 1 1）中任何两个事件却不会同时中任何两个事件却不会同时 发生发生 2 2）事件的并集为全集（所有可事件的并集为全集（所有可 能性）能性）nAA,1nAA,12022-12-14261,niAAA0)(iApniiiiiiABPApABpApBAp1)|()()|()()|(2022-12-14272022-12-14282022-12-14292111好好差差不卖不卖买买买买卖卖卖卖不买不买不卖不卖不买不买p，v-p0，0p-c，w-p c，00，00，02022-12-14302022-12-14312022-12-14322022-12-14332022-12-1
4、4342022-12-14352022-12-1436bp2022-12-1437bgpsbppsgp)|(,)|(2022-12-14380)()(pwppvpbg0)()(pwppvpbgpc2022-12-14391,0p g sp b s100VPWPVP 2022-12-14400,1p g sp b s0,1p g sp b s2022-12-1441PC0p g sVPp b sWP2022-12-14422022-12-14433000,0,2000,1000,0.5gbVWPCpp.31)|(,32)|(sbpsgp200010005000gbPCpVPp WP且)1)/(g
5、sp)0)/(bsp2022-12-1444325.05.015.015.0)|()|()|()|(bsppgsppgsppsgpbgg2022-12-1445(|)()(|)()2/3 1000 1/3(2000)0p g svpp b swp 0.5 20000.5 010000.5 10000.5(1000)0 2022-12-1446gbpVPpWPC2022-12-14472022-12-1448hplphp2022-12-14492111好好差差高价高价买买买买高价高价低价低价不买不买低价低价不买不买 002买买买买不买不买不买不买hphpv -c00000cphhpwlplpvlplpw2022-12-14500)()(hbhgpwppvp2022-12-14512022-12-14520vwph1,0,0,1p g hp b hp g ep g l
