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Question 7 2 pts A card is randomly selected from a standard deck of 52 cards....

Question 7 2 pts
A card is randomly selected from a standard deck of 52 cards. What is P(8 or 9)?

Homework Help:

2VC: Probabilities when drawing one card from a deck (Links to an external site.) (0:59)

2DD. Probabilities when drawing one card from a deck (Links to an external site.) (DOCX)

Group of answer choices

13/52

16/52

8/52

2/8
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Question 8 2 pts
In a sample of 500 customers, 140 say that service is poor. You select two customers without replacement to get more information on their satisfaction. What is the probability that both say service is poor?

Homework Help:

2VE: Probabilities of drawing several from many without replacement (Links to an external site.) (1:35)

2DE. Probabilities of drawing several from many without replacement (Links to an external site.) (DOCX)

Group of answer choices

7.80%

7.84%

28.84%

14.00%
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Question 9 2 pts
In a sample of 487 customers, 301 say they are happy with the service. If you select three customers without replacement for a commercial, what is the probability they will all say they are happy with the service?

Homework Help:

2VE: Probabilities of drawing several from many without replacement (Links to an external site.) (1:35)

2DE. Probabilities of drawing several from many without replacement (Links to an external site.) (DOCX)

Group of answer choices

23.52%

23.14%

20.60%

23.61%
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Question 10 2 pts
A company finds that when they pay employees more, the employees are more productive. How would you classify these events, based on this finding?

Homework Help:

2DF. Independent versus dependent events; mutually exclusive and non-mutually exclusive events, complements (Links to an external site.) (DOCX)

Group of answer choices

Dependent

Independent
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Question 11 2 pts
A company sells 14 types of crackers that they label varieties 1 through 14, based on spice level. What is the probability that one purchase results in a selection of a cracker with an even number or a number less than 5?

Homework Help:

2VF (1): Probabilities using addition rule from values and from percentages (Links to an external site.) (0:54)

2DG. Probabilities using addition rule (Links to an external site.) (DOCX)

Group of answer choices

14.0%

64.3%

71.4%

35.7%
Math   Statistics-And-Probability   
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