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16.03.2020 •
Mathematics
A man claims to have extrasensory perception (ESP). As a test, a fair coin is flipped 2020 times, and the man is asked to predict the outcome in advance. He gets 1515 out of 2020 correct. What is the probability that he would have done at least this well if he had no ESP
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Ответ:
Our required probability is 0.0207.
Step-by-step explanation:
Since we have given that
n = 20
He gets 15 out of 20 correct.
Probability of success =
Using 'binomial distribution", we get Probability that he would have done at least this well if he had no ESP,
Hence, our required probability is 0.0207.
Ответ:
LCM of 20 and 25 is 300
HCF of 20 and 25 is 5