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binomial distribution

  1. DAT Destroyer

    DAT Binomial Probability Question | Math Destroyer | Dr. Jim Romano

    70 % of the Hockey referees freeze the pucks before the game. If 8 referees are chosen at random what is the probability that exactly 5 of them freeze the puck before the game? A) 70 % B) 8 % C) 5% D) 15 % E) 25 % Answer: E 8C5*(0.7)^5*(0.3)^3 8C5 = 8!/{(8-5)!*5!} = 56 560.1680.027 =...
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