MATHEMATICS

Question 2 (1 point) Six Hatfields and four McCoys are up for 3 construction jobs in Williamson.  What is the probability that all 3 jobs go to Hatfields?

Answer in decimal form.  Round to 3 decimal places as needed.

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Question 3 (1 point) Five Hatfields and three McCoys are up for 3 construction jobs in Williamson.  What is the probability that all 3 jobs go to Hatfields?

Answer in decimal form.  Round to 3 decimal places as needed.

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Question 4 (1 point) Given P(A) = 0.21, P(B) = 0.24, and P(B|A) = 0.24, are A and B independent or dependent?

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Question 5 (1 point) Given P(A) = 0.51, P(B) = 0.79, and P(A or B) = 0.66, are events A and B mutually exclusive?

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Question 6 (1 point) Given P(A) = 0.20, P(B) = 0.27, and P(B|A) = 0.20, are A and B independent or dependent?

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Question 7 (1 point) Snoopy Brown is interested in the number of businesses that do not allow dogs in St. Paul, MN.  To conduct his study, he randomly selects 100 businesses listed in the St. Paul phone book, calls them and asks their policy.  What is the sample of this study?

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Question 8 (1 point) Zaphod Beeblebrox has recently purchased a second-hand ballpoint pen business.  In the first month, they purchased the following pens.

Color Count
Black 582
Blue 651
Red 404
Green 106
UltraViolet 782
Purple 585

What is the relative frequency of green pens purchased?

Answer in decimal form.  Round to 3 decimal places as needed.

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Question 9 (1 point) Belinda Hatfield
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Question 10 (1 point) Compute the median of 39, 51, 31, 59, 18, 39

Round to 2 decimal places as needed

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Question 11 (1 point) Compute the median of 44, 26, 50, 38, 50, 18

Round to 2 decimal places as needed

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Question 12 (1 point) Compute the median of 33, 55, 15, 39, 49.

Round to 2 decimal places as needed.

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Question 13 (1 point) What is the range of the following: 63, 67, 50, 10, 55, 18

Round to 2 decimal places as needed.

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Question 14 (1 point) What is the range of the following: 11, 23, 51, 24, 67, 43

Round to 2 decimal places as needed.

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Question 15 (1 point) What is the range of the following: 17, 20, 43, 11, 18, 69

Round to 2 decimal places as needed.

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