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Find the probability of rolling a sum of two dice

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Question 1: Suppose a random variable, x, arises from a binomial experiment. If n = 14, and p = 0.13, find the P(X = 3) using Excel. Round answer to 4 decimal places.

Question 2: It is known that 20% of adult workers have a high school diploma. If a random sample of 5 adult workers is selected, what is the expected number of adult workers with a high school diploma? (That is, what is E(X)?)  (Do not round answer)

Question 3: Approximately 10% of all people are left-handed. Out of a random sample of 15 people, what is the probability that 4 of them are left-handed? Round answer to 4 decimal places.

Question 4: Find the probability of rolling a sum of two dice that is more than 7. Round answer to 4 decimal places.

Question 5: Suppose a random variable, x, follows a Poisson distribution. Let μ = 2.5 every minute, find the P(X ≥ 125) over an hour. Round answer to 4 decimal places.

Question 6: It is known that 70% of adult workers have a high school diploma. If a random sample of 6 adult workers is selected, what is the probability that 5 or more of them have a high school diploma? (That is, find P(X5))  (keep 4 decimal places)

Reference no: EM132394105

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