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Statistics

Question 2: Using the normal approximation to the binomial to approximate the probability that X is at least 10, the area under the normal curve should be calculated from?
Question 1: A die was tossed. Given that an even number occurred, the probability that it was a 4 is?

Question 3: A coin is tossed 1,000 times. The probability that at least one head appears is?

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