Author Question: The function that defines the probability distribution of a continuous random variable is a a. ... (Read 128 times)

vHAUNG6011

  • Hero Member
  • *****
  • Posts: 514
The function that defines the probability distribution of a continuous random variable is a
 a. normal function.
   b. uniform function.
   c. either normal of uniform depending on the situation.
   d. probability density function.

Question 2

Last school year, the student body of a local university consisted of 30 freshmen, 24 sophomores, 26 juniors, and 20 seniors. A sample of 300 students taken from this year's student body showed the following number of students in each classification. Freshmen 83 Sophomores 68 Juniors 85 Seniors 64 We are interested in determining whether or not there has been a significant change in the classifications between the last school year and this school year. The expected frequency of seniors is
 a. 60.
  b. 20.
  c. 68.
  d. 64.



efwsefaw

  • Sr. Member
  • ****
  • Posts: 351
Answer to Question 1

d

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

There are more bacteria in your mouth than there are people in the world.

For a complete list of videos, visit our video library