« previous next »

Author Question: Suppose a household is chosen at random and the random variable x is the number of cars they own. ... (Read 251 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?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

The relationship between number of acres a Kipsigis man owns and the number of offspring he has duri The relationship between number of acres a Kipsigis man owns and the number of offspring he has duri
Typical slip-joint pliers are common household pliers. The slip joint allows the jaws to be opened ... Typical slip-joint pliers are common household pliers. The slip joint allows the jaws to be opened ...
Determination of the number of theoretical stages Determination of the number of theoretical stages
How to write any number in scientific notation How to write any number in scientific notation
What would your average (mean) number of cells per cluster be? What would your average (mean) number of cells per cluster be?
Plot showing the number of genes on each human chromosome Plot showing the number of genes on each human chromosome
Video: Bone Growth and Remodeling

For a complete list of videos, visit our video library