作业帮sat2 if 10 coins are to be flipped and the first 5 all come
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sat2
if 10 coins are to be flipped and the first 5 all come up heads,what is the probability that exactly 3 more heads will be flipped?
if 10 coins are to be flipped and the first 5 all come up heads,what is the probability that exactly 3 more heads will be flipped?
Answer:
This can be solved according to the Bernoulli binomial distribution:
C(5,3) x (1/2)^3 x [1-(1/2)]^(5-3)
= 10 x (1/2)^5
= 10/32
= 5/16
= 0.3125
再问： what is the Bernoulli binomial distribution?
再答： Answer: You can refer to a book about probability and statistics. Alternatively, you can simply Google "binomial distribution" for a quick answer.
This can be solved according to the Bernoulli binomial distribution:
C(5,3) x (1/2)^3 x [1-(1/2)]^(5-3)
= 10 x (1/2)^5
= 10/32
= 5/16
= 0.3125
再问： what is the Bernoulli binomial distribution?
再答： Answer: You can refer to a book about probability and statistics. Alternatively, you can simply Google "binomial distribution" for a quick answer.
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