This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: We can describe graphically the shape of the distribution by a histogram, which can be symmetrical ... (Read 111 times)

nummyann

  • Hero Member
  • *****
  • Posts: 576
on: Jun 24, 2018
We can describe graphically the shape of the distribution by a histogram, which can be symmetrical or asymmetrical.
 
  Indicate whether the statement is true or false

Question 2

If X and Y are random variables with Var(X) = 7.5, Var(Y) = 6 and Cov(X, Y) = 4, then Var(2X + 3Y) is:
 
  A) 33
  B) 37
  C) 88
  D) 132


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nothere

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jun 24, 2018
Answer to Question 1

TRUE

Answer to Question 2

D


nummyann

  • Member
  • Posts: 576
Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

adammoses97

  • Member
  • Posts: 337
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

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

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

The three basic body plans of bilaterally symmetrical animals. The three basic body plans of bilaterally symmetrical animals.
Distribution of the Old World monkeys. Distribution of the Old World monkeys.
Flexible cooling fan blades change shape as the engine speed changes. Flexible cooling fan blades change shape as the engine speed changes.
Distribution and Forms of Precipitation: Snow Distribution and Forms of Precipitation: Snow
Distribution of sex chromosomes from generation to generation. All children receive an X chromosome Distribution of sex chromosomes from generation to generation. All children receive an X chromosome
The distribution of Neandertal and Denisovan DNA in the modern human genome The distribution of Neandertal and Denisovan DNA in the modern human genome
Video: Electrical Conduction System of the Heart

For a complete list of videos, visit our video library