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61.Refer to Exhibit 5-8. What the random variable in this

Question : 61.Refer to Exhibit 5-8. What the random variable in this : 1329672

 

 

61.Refer to Exhibit 5-8. What is the random variable in this experiment?

a.the 60% of female students

b.the random sample of 8 students

c.the number of female students out of 8

d.the student body size

 

 

 

62.Refer to Exhibit 5-8. What is the probability that among the students in the sample exactly two are female?

a.0.0896

b.0.2936

c.0.0413

d.0.0007

 

 

 

63.Refer to Exhibit 5-8. What is the probability that among the students in the sample at least 7 are female?

a.0.1064

b.0.0896

c.0.0168

d.0.8936

 

 

 

64.Refer to Exhibit 5-8. What is the probability that among the students in the sample at least 6 are male?

a.0.0413

b.0.0079

c.0.0007

d.0.0499

 

 

 

Exhibit 5-9

Forty percent of all registered voters in a national election are female. A random sample of 5 voters is selected.

 

65.Refer to Exhibit 5-9. What is the random variable in this experiment?

a.the 40% of female registered voters

b.the random sample of 5 voters

c.the number of female voters out of 5

d.the number of registered voters in the nation

 

 

 

66.Refer to Exhibit 5-9. The probability that the sample contains 2 female voters is

a.0.0778

b.0.7780

c.0.5000

d.0.3456

 

 

 

67.Refer to Exhibit 5-9. The probability that there are no females in the sample is

a.0.0778

b.0.7780

c.0.5000

d.0.3456

 

 

 

Exhibit 5-10

The probability that Pete will catch fish on a particular day when he goes fishing is 0.8. Pete is going fishing 3 days next week.

 

68.Refer to Exhibit 5-10. What is the random variable in this experiment?

a.the 0.8 probability of catching fish

b.the 3 days

c.the number of days out of 3 that Pete catches fish

d.the number of fish in the body of water

 

 

 

69.Refer to Exhibit 5-10. The probability that Pete will catch fish on exactly one day is

a..008

b..096

c..104

d..8

 

 

 

70.Refer to Exhibit 5-10. The probability that Pete will catch fish on one day or less is

a..008

b..096

c..104

d..8

 

 

 

 

Solution
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