« previous next »

Author Question: Which of the following is not necessarily true for independent events A and B? a. P(A and B) = ... (Read 54 times)

meagbuch

  • Hero Member
  • *****
  • Posts: 568
on: Jul 24, 2018
Which of the following is not necessarily true for independent events A and B?
 a. P(A and B) = P(A)P(B)
  b. P(AB)=P(A)
  c. P(BA)=P(B)
  d. P(A or B) = P(A) + P(B)

Question 2

In a past General Social Survey, 87 of a random sample of n = 990 respondents answered yes to the question Would you approve of an adult male punching a stranger if the stranger had broken into the man's house? A 95 confidence interval for the proportion of all Americans who approve of punching an intruder is
 a. 0.852 to 0.888
  b. 0.849 to 0.891
  c. 0.845 to 0.895
  d. 0.842 to 0.898


jennafosdick

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

The events in inflammation. The events in inflammation.
Major Events in the History of Psychology (2 of 6) Major Events in the History of Psychology (2 of 6)
Mechanical Events Mechanical Events
Midsagittal section indicating locations of true and false pelves Midsagittal section indicating locations of true and false pelves
Independent assortment of alleles of two genes Independent assortment of alleles of two genes
Light-independent reactions in C3 plants. Light-independent reactions in C3 plants.
Video: Introduction to Insulin

For a complete list of videos, visit our video library