Author Question: It has been alleged that 40 percent of all college students favor Dell computers. If this were true, ... (Read 91 times)

Ebrown

  • Hero Member
  • *****
  • Posts: 567
It has been alleged that 40 percent of all college students favor Dell computers. If this were true, and we took a random sample of 50 students, the binomial probability table for cumulative values of x available in your text, would reveal which of the following probabilities?
 a. The probability of 10 or fewer students in favor is .586.
  b. The probability of fewer than 20 students in favor is 1.000.
  c. The probability of more than 15 students in favor is .013.
  d. All of these.
  e. None of these.

Question 2

Like the variance and standard deviation, the covariance of a single set of bivariate data is always positive.
  Indicate whether the statement is true or false



jennafosdick

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

D

Answer to Question 2

F



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

For a complete list of videos, visit our video library