Mathematics

Mathematics, 01.08.2019 17:00, meliac

What is the probability of getting 3 heads in 8 flips of a fair coin?

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Mathematics, 30.06.2019 11:20, jeremiahharrisjr

Kevin is doing an experiment where he flips a fair coin 20 times and analyzes the results. the coin has come up heads the first 19 trials. what is the conditional probability that the next flip will come up tails, given that the previous 19 flips were heads? explain why your answer makes sense.

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Mathematics, 28.07.2019 17:30, missalawode28

Five independent flips of a fair coin are made. find the probability that (a) the first three flips are the same; (b) either the first three flips are the same, or the last three flips are the same; (c) there are at least two heads among the first three flips, and at least two tails among the last three flips.

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Mathematics, 22.10.2019 23:50, williamnason123

Sally has two coins. the first coin is a fair coin and the second coin is biased. the biased coin comes up heads with probability .75 and tails with probability .25. she selects a coin at random and flips the coin ten times. the results of the coin flips are mutually independent. the result of the 10 flips is: t,t,h,t,h,t,t,t,h,t. what is the probability that she selected the biased coin?

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Mathematics, 02.11.2019 06:31, savid88061

(a) a gambler has a fair coin and a two-headed coin in his pocket. he selects one of the the coins at random; when he flips it, it shows heads. what is the probability that it is the fair coin? (b) suppose that he flips the same coin a second time and, again, it shows heads. now what is the probability that it is the fair coin? (c) suppose that he flips the same coin a third time and it shows tails. now what is the probability that it is the fair coin?

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