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 75 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
Wow, this really help

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

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.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Two mechanisms that affect cell shape and movement. Two mechanisms that affect cell shape and movement.
Distribution and Forms of Precipitation: Snow Distribution and Forms of Precipitation: Snow
Distribution of H2A.Z-containing nucleosomes near a transcription start site (TSS) Distribution of H2A.Z-containing nucleosomes near a transcription start site (TSS)
The Frequency Distribution Curve of a Drug The Frequency Distribution Curve of a Drug
Distribution of dystrophin in muscle cells. (a) In normal muscle cells, all the dystrophin is locate Distribution of dystrophin in muscle cells. (a) In normal muscle cells, all the dystrophin is locate
Gravitational Force Due to a Distribution of Mass Problem 1 Gravitational Force Due to a Distribution of Mass Problem 1
Video: Inflammation Animation

For a complete list of videos, visit our video library