dtan5457
  • dtan5457
If 4 fair dice are rolled, what is the probability that at least 2 are fives?
Mathematics
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dtan5457
  • dtan5457
If 4 fair dice are rolled, what is the probability that at least 2 are fives?
Mathematics
schrodinger
  • schrodinger
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kropot72
  • kropot72
\[\large P(2\ fives)=4C2 \times (\frac{1}{6})^{2} \times(\frac{5}{6})^{2}\] Then we need to use the binomial distribution again to find P(3 fives) and P(4 fives) and add the three values of probability together.
kropot72
  • kropot72
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