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2. Say you flip a fair coin 20 times. a. Obviously the expected number of heads is 10. What is the standard deviation? b. What

2. Say you flip a fair coin 20 times. a. Obviously the expected number of heads is 10. What is the standard deviation? b. What is the probability that the number of heads you observe is within 1 standard deviation of the expected value? What is the probability that the number of beads you observe is within 2 standard deviations of the expected value? d/ What is the probability that the number of beads you observe is within 5 standard deviations of the expected value

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