« previous next »

Author Question: Suppose a household is chosen at random and the random variable x is the number of cars they own. ... (Read 307 times)

crobinson2013

  • Hero Member
  • *****
  • Posts: 535
on: Jun 24, 2018

  Suppose a household is chosen at random and the random variable x is the number of cars they own. The probability distribution of x is as follows:
 
  What is the expected value of x, the average number of televisions per household?
   
 

  a.2
  b.2.5
  c.0.25
  d.1.95

Question 2


 

Suppose Y = the number of years that a person has worked for one company from a randomly selected person in the work force. Given the following values of the cumulative distribution function (CDF), what is the ?
  CDF: FY(2) = 0.05, FY(4) = 0.15, FY(6) = 0.45, FY(8) = 0.60, FY(10) = 0.75, FY(12) = 0.95


 

  a.
 

b. = F(10) - F(2) = 0.75 - 0.05 = 0.70
 


  c.
  d.


Zebsrer

  • Sr. Member
  • ****
  • Posts: 284
Reply #1 on: Jun 24, 2018
Answer to Question 1

correct: d

Answer to Question 2

correct: b


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

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?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

The reflection nebula NGC 1999 is brilliantly illuminated by V380 Orionis (center), a variable star The reflection nebula NGC 1999 is brilliantly illuminated by V380 Orionis (center), a variable star
Random Random
Estimated Number of New Sexually Transmitted Infections Estimated Number of New Sexually Transmitted Infections
Discrete random variables- Probability Distribution Function Discrete random variables- Probability Distribution Function
Number of Chromosomes in Selected Organisms Number of Chromosomes in Selected Organisms
Human Diseases Associated with Copy Number Variants Human Diseases Associated with Copy Number Variants
Video: Types of energy transfer reactions: oxidation-reduction reactions and ATP generation reactions

For a complete list of videos, visit our video library