Answer to Question #136230 in Mechanical Engineering for Fredrick Moleleki

Question #136230
1. Lelentle has purchased 10 of the 1000 tickets sold in a raffle. To determine the 5 prize winners, 5 tickets are drawn at random. Compute the probability that Lelentle will win at least 1 prize.
Expert's answer

Let p be the probability that they do not win the prize and 1-p be the probability of winning the prize. As it is given in 1000 ticket ,10 ticket sold as we have to determine probability if 5 ticket drawn at random and in that 1 ticket selected randomly

so here ticket that dont give prize


so probability of getting prize = 1-p

P=1- "\\frac{^{995}C_{10}}{^{1000C_{10}}}"

P=0.05 is the required probability

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Fredrick Moleleki
03.10.20, 08:06

What does that “C” mean

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