Page 245 - Math Grade 11 (Basic)

PROEUS DARA

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n m z = 1 u rrn ntfliQlnu M rn;um
<N c& Li uli
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.. "' ~ IJ ..
t::::l1 • • 0 0 ct
b'UH.i5 z = -1 UITTlntfliQlnuJ,lJl bliiUffiMQl'Ul
(3- Li u Li ..
$ 40 f6msi&Uffl13'!3um'i3ru~rulnM~tn '1 --------,tllft--+-ift-+11---t('j<IAQr--- z
~ ~ u n
0 1 z

m'l3m'i:32 z = x-~-t =55-50= 0.5
u ., a 10
mr:~~ru (Z<0.5) = 0.5+0.1915

= 0.6915 = 69.15%
t) eJ I 0
~msg LumsLn'l:3mm~nttHlil:ll2LOlnrHUJ rn
1
0 (;(~ "':) eJ 0 1
LumM~'Ulnuctlb $55 l:ll2 69.15% t2LUtn2@1:3mm~n91bHM '1
1
' 0
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rut.m ~f-'U iilM2iun tu~;mti'l:3rutn2itin tu~i mtim2 m ticr 2 n mti t'i::! ruiiltu ~2 n mti M~
U 1 Li n 1..) IJ Li n 1..) Li li< li< n
Lmlim1:3mut'Mbtun~~ffiru l:ll21:3uJ1:3t~sb 2oog sbl:ll2~rulnt~sb 2g '1 r:~Mm
mr:~~ ru ffiMn mti M~'i mti ti::! rnms'iun ttnruffiM2
li< n 1..) Li 1
n. tLcr2mb 2oo.5g 2. tsimfflg 198.5g sb t99.5g '1

n. mm ru fi::! rn (X> 2oo.s)

mr:~~ rufi::! ru (X> 200.5)
= mr:~~rufi::!rn (x - 200 > 200.5 - 200)
2 2
= mmrufi::!ru(Z>0.25) ____ ..~.__===-x
z
0 0.25
= 0.5-0.0987 = 0.4013 = 40.13%

2. mr:~~ruti::!rn (198.5 <X< 199.5)
= mr:~~ruti::!ru (198.5 <X< 199.5) =

mr:~~ruft:Jrn 198.5 200 <x- 200 < 199.5 -200)
2 2
= mmrufi::!rn (-0.75<Z<-0.25) --~~~~------X
----~----------z
-0.75-0.250
= 0.2734-0.0987 = 0.1747 = 17.47 %

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