Page 205 - Grade 10 C.Math

P(A / B) cyjf P(A) / P( B) n] hgfOG5 .
oxfF P(AB) = P(A) x P(B) x'G5 .

To:t} u/L A, B / C ltg cf]6f cgfl>t 36gfx¿ x'g eg] P(ABC) = P(A) x P(B) x P(C) x'G5 .

pbfx/0f 1
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Pp6f l;Ssf / Pp6f 8fO; Ps} ;do pkmfbf{ l;Ssfsf] cu|efu (H) / 8fO;df 5 cfpg]
;DefJotf slt x'G5 < kTtf nufpg'xf];\ .

;dfwfg

oxfF, Pp6f l;Ssf / Pp6f 3gfsf/ 8fO;nfO{ Ps} ;fy pkmfbf{ l;Ssfdf H cyjf T dWo] s'g}
klg cfpg ;S5 eg] 8fO;df 1 b]lv 6 cª\s;Dd s'g} klg cfpg ;S5 . l;Ssfdf cfpg]

36gfn] 8fO;df cfpg] 36gfnfO{ s'g} c;/ ub}{gg\ tL 36gfx¿ cgfl>t x'g\ .

l;Ssfsf] gd'gf If]q (sample space), S = {H, T}
1
8fO;sf] gd'gf If]q (sample space) S = {1, 2, 3, 4, 5, 6}
2
b'j}sf] ;Defljt gd'gf If]q S = { (H, 1), (H, 2), (H, 3), (H, 4), (H, 5), (H, 6), (T, 1), (T, 2), (T, 3),
(T, 4), (T, 5), (T, 6)}

 n(S) = 12



 / 

(c) k/fl>t 36gfx¿ (Dependent Events)

Pp6f emf]nfdf 5 cf]6f sfnf / 6 cf]6f /ftf u'Rrfx¿ 5g\ . tLdWo] b'O{ cf]6f u'Rrf gx]/L klxn]
lgsfn]sf] u'Rrf k'gM emf]nfdf g/fvL Pskl5 csf]{ j|mdzM lgsfNbf

klxnf] u'Rrf /ftf] cfpg] ;DefJotf, 

bf];|f] u'Rrf /ftf] cfpg] ;DefJotf, 

202 ul0ft, sIff – 10