Author Question: If X and Y are independent variables with V(X) = 23.48 and V(Y) = 36.52, then the standard deviation ... (Read 65 times)

EAugust

  • Hero Member
  • *****
  • Posts: 550
If X and Y are independent variables with V(X) = 23.48 and V(Y) = 36.52, then the standard deviation of W = X + Y is w = 7.746.
  Indicate whether the statement is true or false

Question 2

Bivariate distributions provide probabilities of combinations of two variables.
  Indicate whether the statement is true or false



zoeyesther

  • Sr. Member
  • ****
  • Posts: 315
Answer to Question 1

T

Answer to Question 2

T



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

For a complete list of videos, visit our video library