Page 204 - Grade 10 C.Math

8. Pp6f 8fO;nfO{ Ps k6s pkmf{bf lgDgfg';f/sf] ;DefJotf lgsfNg'xf];\ M
(i) 3 cyjf 6 kg]{ ;DefJotf

(ii) ?9 ;ª\Vof kg]{ ;DefJotf

(iii) ;+o'St ;ª\Vof kg]{ ;DefJotf
Curriculum Development Centre
(iv) 2 eGbf 7'nf] ;ª\Vof kg]{{ ;DefJotf
(v) 7 sf] u'0ffª\ssf] ;ª\Vof kg]{ ;DefJotf

9. ;DefJotfsf] cª\u|]hL zAb "PROBABILITY" sf Ps Ps cIf/ n]lvPsf P3f/ cf]6f

kTtLx¿af6 gx]/L Pp6f kTtL lgsfNbf B cyjf A cyjf T cª\lst kTtL kg]{
;DefJotf slt x'G5 < kTtf nufpg'xf];\ .

10= ul0ftsf] cª\u|]hL zAb "MATHEMATICS" sf 11 cf]6f cIf/x¿ cª\lst kTtLx¿af6
gx]l/sg Pp6f kTtL lgsfNbf M cyjf A cyjf T cª\lst kTtL kg]{ ;DefJotf slt x'G5,

lgsfNg'xf];\ .

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]
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18.2 ;DefJotfsf u0fg l;bwfGt / jIf lrq
'
(Mul plica on Law and Tree Diagram of Probability)

(a) cgfl>t 36gfx¿ (Independent Events)
s'g} Pp6f l;SsfnfO{ Pskl5 csf]{ u/L b'O{ k6s pkmfbf{ klxnf] k/LIf0fdf 36]sf 36gfn] bf];|f]
k/LIf0fsf] 36gfnfO{ s'g} k|sf/sf] c;/ ub}{g . dfgf}F klxnf] k/LIf0fdf l;Ssfsf] cu|efu (H)
kl/0ffdsf] 36gf 36\5 eg] s'g bf];|f] k6ssf] k/LIf0fdf l;Ssfsf] cu|efu cfpg klxnf]n]

5]Sg ;Sb}g . klxnf] H / bf];|f] H Ps csf{df cgfl>t 36gfx¿ x'g\ . oxfF klxnf] 36gfdf H
cfpFbf bf];|f]df H jf kl5Nnf] efu (T) h'g klg cfpg ;Sg] ;Defjgf x'G5,\ . klxnf] 36gfn]
bf];|f] 36gfnfO{ s'g} lsl;dsf] c;/ kfg{ ;Sb}g . To:t} u/L Pp6f l;Ssf / Pp6f 8fO;

pkmfbf{ l;Ssfdf cfpg] 36gfn] 8fO;df cfpg] 36gfnfO{ c;/ ub}{g lsgls tL b'j} cgfl>t
36gfx¿ x'g\ .

b'O{ jf b'O{eGbf a9L 36gfx¿df Pp6fsf] k|flKtn] csf]{ 36gfnfO{ c;/ ub}{g eg] To:tf

36gfx¿nfO{ cgfl>t 36gfx¿ elgG5 .

(b) cgfl>t 36gfx¿sf] u'0fg l;b\wfGt (Mul plica ve law for independent events)
olb A / B b'O{ cf]6f cgfl>t 36gfx¿ x'g eg] A / B b'j}sf] Ps ;fy cfpg] ;DefJotfnfO{

201 ul0ft, sIff – 10