Number of Motorcycles The probability distribution of a discrete random variable X is shown below, where X represents the number of motorcycles owned by a family.
{Number of Motorcycles Narrative} Apply the laws of expected value and variance to find the following:
a. V( 3 X)
b. V (3 X - 2)
c. V( 3 )
d. V( 3 X)- 2

Question

Number of Motorcycles The probability distribution of a discrete random variable X is shown below, where X represents the number of motorcycles owned by a family. 
  {Number of Motorcycles Narrative} Apply the laws of expected value and variance to find the following: 
 a. V( 3 X)
 b. V (3 X - 2)
 c. V( 3 )
 d. V( 3 X)- 2

Quizplus · Accepted Answer

The Answer of Number of Motorcycles The probability distribution of a discrete random variable X is shown below, where X represents the number of motorcycles owned by a family. 
  {Number of Motorcycles Narrative} Apply the laws of expected value and variance to find the following: 
 a. V( 3 X)
 b. V (3 X - 2)
 c. V( 3 )
 d. V( 3 X)- 2

Number of Motorcycles the Probability Distribution of a Discrete Random