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Author Question: A survey of college students taking the professional exam to be certified as public school teachers ... (Read 91 times)

APUS57

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on: Jun 24, 2018
A survey of college students taking the professional exam to be certified as public school teachers shows that 15 percent fail. On a national exam day, 12,000 students take the test. Let x denote the number who fail. The mean and standard deviation of the random variable x are, respectively:
 a. 1800; 1530
  b. 1800; 39.11
  c. 10,200; 1530
  d. 10,200; 39.11
  e. 1200; 35.71

Question 2

A Company manufactures women's hosiery. The company sells slightly irregular panty hose through a mail-order catalog service. If the company produces 300,000 pairs of hose per day and the probability of a pair not being irregular is 0.92, the average number that will be available for the catalog order department is:
 a. 22080
  b. 148.59
  c. 24000
  d. 154.92
  e. 15.49


JaynaD87

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Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

C


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