Page 171 - Math Grade 12 (Advance)

PROEUS DARA

" '
trn~tsg't:flssrum P(O 1::1rn 1.43) = 0.4236
.,. "" "
:unuunn : m z ctuw3as N(O, 1) '1 R"MSl

n. PCIZI < 1.43)

~. P(IZI > 1.43) '1

cullw :
1811
n. P(IZI < 1.43) = P( -1.43 < z < 1.43)

= 0.4236 + 0.4236 ( t~ rn ffUlb )

= 0.8472

t1msg P(JZI < 1.43) = 0.8472 '1
u
~. P(IZI > 1.43) t t1'lli5 IZI > 1.43 t Sl g z > 1.43 u. z < -1.43

tR'QlS P(JZJ < 1.43) = P(Z > 1.43) + P(Z < -1.43)
.5-0.4236)+(0.5-0.4236) = 0.1528

t1msg P(IZI < 1.43) = o.J528 '1
u
Wtmtftfl: ttl X ctlmrH'fs N(lO, 25) '1 R'MS1D5Lil'U
u u

n. P(X > 12)

~. P(X<6)

R'. P(6 <X< 12) '1

16~