Page 176 - Math Grade 12 (Advance)

PROEUS DARA

¥:1. P(85 <X< 92) '155. P(iX- 1001 < J86) '1

5. dj X ctl~HG~tS N(JOO, 36) Sb P(X<a) = 0.8907 '1 ?irulSlfit'l§ a '1
6V

n. P(Z >a) = 0.3632 g_ P(Z <a) = 0.0793 '1

n. P(O < Z < 1.73) 2. P(-2.05 < Z < 0)

¥:1. P(-0.89<2<-0.16) '155. P(IZI < 1.78)

b. P(IZI > 0.75) '1

8. dj X ctlHtG~tS N(!l, 25) Sb P(X < 27.5) = 0.3085
2
9. ttl X ctlHtG~tS N(!l, o- ) Sb P(X> 102) = 0.4168 , P(X<97) = 0.2517 '1

? rumuiiiqn 6

1. HtG~ttHjSJttlci X 'HlSH9?i'l§StHh~tf1D5tfl'U P(X = 0) = 0.05 ' P(X = 1) = 0.40 Sb
u
P(X=2)=0.55 '1 ?irulSl:

2
n. E(X )
2. Var(X)

2
¥:1. E(3X - X+ 4) '1
2. tmmgunliffJntJlRtlLmtiw'l§[l '1 x ctlHtd~"ttn:lsJ" 8~strn2 5 &t~rn'HlstsiQb
I 1
rngorns'l§ru"]" d~mnbutMbtumumu&s x wMi1urnuHb~runmbutMbtun
"' u IJ Li u n
u
D5tfl'U '1
u
~ I cf I C:,l
3. HtGHutlSJttlti X 'HlSH9?i'l§Stlb~tfiLUOl'U P(X = x) ~u'U~~Qbff"ldlb2lb&Lffl'e :
u 1
-2 -1 0 c

0.1 0.1 0.3 0.4 0.1

n. "" m E(X) = 0.3

2
2. ttl E(X ) = 1.8 '1
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