Which of the following is a discrete random variable? o a the length of time spent in reading lessons Ob the average monthly expenses of a student ° c the height of Gl students O a the number of subjects taken by Gl students

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Which of the following is a discrete random variable?
o a the length of time spent in reading lessons
O b. the average monthly expenses of a student
O c. the height of GIl students
O d. the number of subjects taken by Gl1 students
Which of the following is NOT a true statement?
o a The sum of all probablities in a probability distribution is always equal to one.
O b. Random variables can have more than one value.
O C. The probablity of the value of a random variable can never be zero.
O d. The value of a random variable could be zero.
Which formula gives the probability distribution shown In the table below?
Probability
Distributio
n
х 12 3
PG) 1/o /3 /3
o a P(x) =1/x
O D. P(x)=1/0
O . P(x)=x/0
O d. P(x)=6/x
Transcribed Image Text:Which of the following is a discrete random variable? o a the length of time spent in reading lessons O b. the average monthly expenses of a student O c. the height of GIl students O d. the number of subjects taken by Gl1 students Which of the following is NOT a true statement? o a The sum of all probablities in a probability distribution is always equal to one. O b. Random variables can have more than one value. O C. The probablity of the value of a random variable can never be zero. O d. The value of a random variable could be zero. Which formula gives the probability distribution shown In the table below? Probability Distributio n х 12 3 PG) 1/o /3 /3 o a P(x) =1/x O D. P(x)=1/0 O . P(x)=x/0 O d. P(x)=6/x
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