Set probability problems

5 240 n x 7 6 5 210 y y s y s y y y y s

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Unformatted text preview: 6 E C 4 w D  Q 4 Pep ay@9 r W s ¡( ¡' 6 PE 1000/2 = 500 2 1000/18 = 55 18 2 9 500 + 111 − 55 = 556 556/1000 = 139/250 1000 − 556 = 444 1000/9 = 111 2 9 9 ¡ 4 a9 W  d ¡ W 5! + 5! = 240 ¡' %# n &\$" ¨¦¤¡ x §  §   © § ¥ £ ¡ 7 · 6 · 5 = 210 Y ¡ Y `s Y s Y Y Y Y s ( ' s W ' `s ( W `s ' W `s ' Y ( s W Y ( wY ' ( ¡ '( W( s wY ( s s Y s Y ¨Y ( s ( wY s s s s Y s Y wY ( s ( ¨Y s s s W '( W W' (W' ( W ' W W 'W 'W( ( ' W ' 'W' 'W ( 'W 3! = 6 ¡ ¡( ¡ 5! = 120 ¡ ¡'¡ ¡ W 6! = 720 4 ¡ 26 · 10 · 9 · 8 = 18720 s 22: †10: = ((n + 1) − (n − 2)) n(n − 1) = 3P(n, 2) P (n,2) P(n + 1, 3) − P(n, 3) = (n + 1)n(n − 1) − n(n − 1)(n − 2) †39: 36: 33: 30: 14: v# n &\$" ¨¦¤db §  §   © § ¥ £ ¡ Fq rxq , , qq xxq qF rrq , } s qq rF ¡ 1/8 e { r ww &u1 h ¡ Dw t&&w 'W' Dw t&w h [email protected] s 55F &u1 FF www r e ¡ E @9 s rrF rrF qF Fq r 'W' } 3/8 E @9 { } ' { , , 4/8 = 1/2  FF rrq Dw &w h 'W w v1 ¡' e †5: o# n p\$" ¨¦¤VT §  §   © § ¥ £ ¡ ¡ mE VE ' 4 HD `agA Y  l¡ 40: C D 4 C A 4 iw  4 H D 6 E 4 A @BkjBdd¤`ahP¤`E `g`A faef &B4 AE Y 4 A E E D C A E ¡ h W ' Q49E4 H F 9 Y A @PB5qB4 `&w IB&aP`aD @p&8D Q 4 2 D A 4w D E   4 H Q E 96 C u E E6 C4  W  ¡ 9 4  4 D Aw [email protected]&H ( qD aD 4 H W W †38: C p4 h i¡ 4 4 xvIt9 4 w uD C e y¡ ( W `sW rr 4 ¡ 1E qA C p4 ¡ ( ¡ i¡ ' h 35:...
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