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Author Question: Suppose a household is chosen at random and the random variable x is the number of cars they own. ... (Read 308 times)

crobinson2013

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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

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Reply #1 on: Jun 24, 2018
Answer to Question 1

correct: d

Answer to Question 2

correct: b


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