Please answer the following stats questions

in /by

Please answer the following stats questions

Quiz

Question 1 (1 point)

 
Question 1 Saved

This is an example of a discrete random variable.

The cost of a randomly selected orange.

Question 1 options:

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Question 2 (1 point)

 
Question 2 Unsaved

Find the mean for the binomial distribution what has the values of n = 673 and p = 0.7

Question 2 options:

b)  471.1

c)  472.8

d)  469.6

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Question 3 (1 point)

 
Question 3 Unsaved

Find the probability of at least 2 girls in 7 births. Assume that male and female births are equally likely and that the births are independent events.

Question 3 options:

b)  0.063

c)  0.773

d)  0.938

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Question 4 (1 point)

 
Question 4 Unsaved

A survey for brand recognition is done and it is determined that 68% of consumers have heard of Dull Computer Company. A survey of 800 randomly selected consumers is to be conducted For such groups of 800, it would be unusual to get 491 consumers who recognize the Dull Computer Company name.

Question 4 options:

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Question 5 (1 point)

 
Question 5 Unsaved

Use the given values of n = 1295 and p = 0.98 to find the minimum ususal value 
Mu– 2
Omand the maximum usual value 
Mu+2
Om.

Question 5 options:

b)  Minimum: 1278.18; maximum: 1259.02

c)  Minimum: 1259.02; maximum 1279.18

d)  Minimum: 1264.06; maximum 1274.14

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Question 6 (1 point)

 
Question 6 Unsaved

Use the given values of n = 337 and p = 0.274 to find the minimum and maximum value.

Question 6 options:

b)  Minimum: 80.759; maximum 103.917

c)  Minimum: 84.15; maximum 100.526

d)  Minimum: 108.713; maximum: 75.963

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Question 7 (1 point)

 
Question 7 Unsaved

Suppose that weight of adolescents is being studied by a health organization and that the accompanying tables describes the probability distribution for three randomly selected adolescents, where x is the number who are considered morbidly obese. It is unusual to have no obese subjects among three randomly selected adolescents.

Question 7 options:

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Question 8 (1 point)

 
Question 8 Unsaved

Find the mean of the given probability distribution.

Question 8 options:

b)  1.57

c)  1.78

d)  1.47

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Question 9 (1 point)

 
Question 9 Unsaved

Focus groups of 12 people are randomly selected to discuss products of the Yummy Company. It is determined that the mean number (per group) who recognize the Yummy brand name is 9.4, and the standard deviation is 0.64 It is unususal to randomly select 12 people and find that fewer than 6 recognize the Yummy brand name.

Question 9 options:

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Question 10 (1 point)

 
Question 10 Unsaved

Find the variance for the given probability distribution.

Question 10 options:

b)  1.56

c)  2.85

d)  1.69

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