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

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mathmath333
  • mathmath333
i hate googling (for answers only )lol
anonymous
  • anonymous
you can do it directly or use the complement...
anonymous
  • anonymous
P(at least 4 points) = 1 - P(at most 3 points)
dan815
  • dan815
okay so
mathmath333
  • mathmath333
\(\large \color{black}{\begin{align} & 1-P(0)P(1)P(2)P(3) \hspace{.33em}\\~\\ \end{align}}\) i m worried how to calculate
anonymous
  • anonymous
P(at most 3 points) = P(0 points) + P(1 point) + P(2 points) = P(3 points)
mathmath333
  • mathmath333
oh the addition
dan815
  • dan815
south africa played a total of 4 matches
anonymous
  • anonymous
Hey but the question is about South Africa, not India. We have no information on the probabilities of South Africa vs. New Zealand matches
mathmath333
  • mathmath333
is it can't be determined
dan815
  • dan815
oh i see phpilot
mathmath333
  • mathmath333
is it d.) ?
dan815
  • dan815
i think it is d
dan815
  • dan815
they didnt tell us anything about newzeland vs southafrica probabilities
mathmath333
  • mathmath333
it is given d.) in book too

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