# Test Week 3.docx - Question 1 of 20 1.0 1.0 Points It is...

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Question 1 of 201.0/ 1.0 PointsIt is known that 20% of adult workers have a high school diploma. If a random sample of 10 adult workers is selected, what is the probability that 5 or more of them have a high school diploma? (That is, find P(X ≥ 5) (round to 4 decimal places) Answer: .0328
Question 2 of 201.0/ 1.0 PointsApproximately 8% of all people have blue eyes. A random sample of 20 people is selected, find μ. Round to one decimal place. Answer: 1.6
Question 3 of 201.0/ 1.0 PointsIf random variable X has a binomial distribution with n =8 and P(success) = p =0.5, find the probability that X is at most 3. (That is, find P(X ≤ 3)) (round to 4 decimal places) Answer:
Question 4 of 201.0/ 1.0 PointsIf random variable X has a binomial distribution with n =7 and P(success) = p =0.6, find the probability that X is at least 6. (That is, find P(X ≥ 6) (round to 4 decimal places) Answer:
Question 5 of 201.0/ 1.0 PointsA coin is flipped 30 times. What is the probability of getting 15 or more heads? Round answer to 4 decimal places. Answer: .5722
Part 2 of 6 - Contingency Tables1.0/ 1.0 Points
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