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mathmath333

  • one year ago

Probability question

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  1. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} & \normalsize \text{India plays two matches each with New Zealand and South Africa.} \hspace{.33em}\\~\\ & \normalsize \text{ In any match , the probability of different outcomes for India} \hspace{.33em}\\~\\ & \normalsize \text{ is given below -} \hspace{.33em}\\~\\~\\~\\ & \begin{array}{|c|c|c|} \hline \text{Outcome} & \text{Win} & \text{Loss} & \text{Draw} \\ \hline \text{Probablity} & 0.5 & 0.45 & 0.05 \\ \hline \text{Points} & 2 & 0 & 1 \\ \hline \end{array} & \hspace{.33em}\\~\\ & \normalsize \text{1.) What is the probablity Soth africa getting atleast 4 points .} \hspace{.33em}\\~\\ & \normalsize \text{ assume south africa and newzealand play 2 matches. } \hspace{.33em}\\~\\ & a.)\ 0.2025 \hspace{.33em}\\~\\ & b.)\ 0.0625 \hspace{.33em}\\~\\ & c.)\ 0.0425 \hspace{.33em}\\~\\ & d.)\ \normalsize \text{ can't ve determined} \hspace{.33em}\\~\\ \end{align}}\)

  2. mathmath333
    • one year ago
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    i hate googling lol

  3. imqwerty
    • one year ago
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    ^ :)

  4. mathmath333
    • one year ago
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    i hate googling (for answers only )lol

  5. anonymous
    • one year ago
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    you can do it directly or use the complement...

  6. anonymous
    • one year ago
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    P(at least 4 points) = 1 - P(at most 3 points)

  7. dan815
    • one year ago
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    okay so

  8. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align} & 1-P(0)P(1)P(2)P(3) \hspace{.33em}\\~\\ \end{align}}\) i m worried how to calculate

  9. anonymous
    • one year ago
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    P(at most 3 points) = P(0 points) + P(1 point) + P(2 points) = P(3 points)

  10. mathmath333
    • one year ago
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    oh the addition

  11. dan815
    • one year ago
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    south africa played a total of 4 matches

  12. anonymous
    • one year ago
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    Hey but the question is about South Africa, not India. We have no information on the probabilities of South Africa vs. New Zealand matches

  13. mathmath333
    • one year ago
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    is it can't be determined

  14. dan815
    • one year ago
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    oh i see phpilot

  15. mathmath333
    • one year ago
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    is it d.) ?

  16. dan815
    • one year ago
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    i think it is d

  17. dan815
    • one year ago
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    they didnt tell us anything about newzeland vs southafrica probabilities

  18. mathmath333
    • one year ago
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    it is given d.) in book too

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