Author Question: Consider the following linear transformation of a random variable y = where x is the mean of x and x ... (Read 196 times)

jessicacav

  • Hero Member
  • *****
  • Posts: 558
Consider the following linear transformation of a random variable y = where x is the mean of x and x is the standard deviation. Then the expected value and the standard deviation of Y are given as
 
  A) 0 and 1
  B) 1 and 1
  C) Cannot be computed because Y is not a linear function of X
  D) and x

Question 2

The sample average is a random variable and
 
  A) is a single number and as a result cannot have a distribution.
  B) has a probability distribution called its sampling distribution.
  C) has a probability distribution called the standard normal distribution.
  D) has a probability distribution that is the same as for the Y1,..., Yn i.i.d. variables.



juliaf

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

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.

For a complete list of videos, visit our video library