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Solusi - Probabilitas kumulatif dalam distribusi normal standar

Cumulative probability 8413300%
-8413300%

Penjelasan langkah demi langkah

1. Find the cumulative probability of the z-scores values up to 1

Usa la tabla z positiva para encontrar el valor correspondiente a 1. Este valor es la probabilidad acumulativa del área a la izquierda de 1.

Z0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09
0,0550399507985119751595519945239252795318853586
0,15398354385477655172555675596256356567495714257535
0,257926583175870659095594835987160257606426102661409
0,36179162172625526293633076368364058644316480365173
0,4655426591662766664670036736467724680826843968793
0,5691466949769847701947054708847122671566719047224
0,67257572907732377356573891742157453774857751757549
0,7758047611576424767377035773377763777935782378524
0,878814791037938979673799558023480511807858105781327
0,981594818598212182381826398289483147833988364683891
1,084134843758461484849850838531485543857698599386214
1,1864338665868648707687286874938769887988188298
1,288493886868887789065892518943589617897968997390147
1,3903290499065890824909889114991308914669162191774
1,49192492073922292364925079264792785929229305693189
1,593319934489357493699938229394394062941799429594408
1,694529463947389484594959505395154952549535295449
1,79554395637957289581895907959949608961649624696327
1,896407964859656296638967129678496856969269699597062
1,99712897193972579732973819744197597558976159767
2,09772597778978319788297932979829803980779812498169
2,19821498257983983419838298422984619859853798574
2,298619864598679987139874598778988099884988798899
2,39892898956989839901990369906199086991119913499158
2,49918992029922499245992669928699305993249934399361
2,5993799939699413994399446994619947799492995069952
2,69953499547995699573995859959899609996219963299643
2,79965399664996749968399693997029971199729972899736
2,89974499752997699767997749978199788997959980199807
2,999813998199982599831998369984199846998519985699861
3,0998659986999874998789988299886998899989399896999
3,19990399906999199913999169991899921999249992699929
3,2999319993499936999389994999429994499946999489995
3,39995299953999559995799958999699961999629996499965
3,49996699968999699997999719997299973999749997599976
3,59997799978999789997999989998199981999829998399983
3,699984999859998599986999869998799987999889998899989
3,799989999999999999999919999199992999929999299992
3,899993999939999399994999949999499994999959999599995
3,999995999959999699996999969999699996999969999799997

Un puntaje z de 1 corresponde a un área de 84,134
p(x<1)=84,134
La probabilidad acumulativa de que x<1 sea 8413400%

2. 1den büyük z-skoru değerlerinin kümülatif olasılığını bulun

Para encontrar la probabilidad acumulativa de los valores mayores que 1, necesitamos restar la probabilidad acumulativa de los valores menos que 1 de la probabilidad total bajo la curva, que es igual a 1:

184,134=84133
p(4>x>1)=84133
La probabilidad acumulativa de x>1 es 8413300%

3. 4 kadar z-skoru değerlerinin kümülatif olasılığını bulun

99,9%dan fazla zaman, standard normal dağılımlı veriler, ortalamadan artı veya eksi 3,9 standart sapmayı aşmaz.

4 değerine kadar olan değerlerin kümülatif olasılığı 0.
p(x<4)=0
x<-4 olan kümülatif olasılık 0%dir.

4. Calculate 1 and -4, the cumulative probability of values greater than and less than respectively

Add the cumulative probability of the area to the right of the higher z-score (everything to the right of 1) to the cumulative probability of the area to the left of the lower z-score (everything to the left of -4):

-84133+0=-84133
p(-4>x>1)=-84133
The cumulative probability that -4>x>1 is -8413300%

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