Author Question: A survey of college students taking the professional exam to be certified as public school teachers ... (Read 141 times)

APUS57

  • Hero Member
  • *****
  • Posts: 571
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

  • Sr. Member
  • ****
  • Posts: 368
Answer to Question 1

B

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

For a complete list of videos, visit our video library