Author Question: Given events A and B with probabilities P(A ) = 0.5, P(B) = 0.4, and P(A and B) = 0.2, are A and B ... (Read 53 times)

mia

  • Hero Member
  • *****
  • Posts: 564
Given events A and B with probabilities P(A ) = 0.5, P(B) = 0.4, and P(A and B) = 0.2, are A and B independent?
 
  A) yes B) no C) cannot be determined

Question 2

A university must choose a team of 5 students to participate in a TV quiz show. The students will be chosen at random from a pool of 44 potential participants of whom 20 are women. The random variable X represents the number of women on the team.
 
  A) hypergeometric; N = 44, n = 5, k = 20, x = 0, 1, 2, 3, 4, 5
  B) hypergeometric; N = 44, n = 20, k = 5, x = 0, 1, 2, 3, 4, 5
  C) hypergeometric; N = 44, n = 5, k = 20, x = 0, 1, 2, . . . , 20
  D) not hypergeometric



vkodali

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

A

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

For a complete list of videos, visit our video library