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Quantitative Aptitude PROBABILITY in Quantitative Aptitude 1 year ago
Posted on 26 Sep 2023, this text provides information on PROBABILITY in Quantitative Aptitude related to Quantitative Aptitude. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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10/21
Possible out comes(E) or Favourable OUTCOMES areE1.2 red ball orE2.2 green ball orE3.1 red and 1 greenNumber of selecting 2 BALLS from two red balls n(E)=2C2=1Number of ways of selecting 2 balls from 3 green balls n(E2)=3C2=3Number of ways of selecting 1 red ball and 1 green ball n(E3)= 2C1*3C1=2*3=6Sample SPACE S=Number of ways of selecting 2 balls from 7(2+3+2) balls n(S)=7C2=21n(E)=n(E1)+ n(E2)+ n(E3)=1+3+6=10Required probability P(E)=n(E)/n(S)=10/21
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Quantitative Aptitude 1 Answers
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