Discrete Random Variables (VCE SSCE Mathematical Methods): Flashcards
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Definition of random variable
Definition of random variable
Function linking each outcome to a specific number
Notation used for random variables
Notation used for random variables
Capital letters like , , or
Definition of discrete random variable
Definition of discrete random variable
Takes only separate, countable values
Discrete random variables arise from
Discrete random variables arise from
Counting processes
Definition of continuous random variable
Definition of continuous random variable
Can take any value within an interval
Continuous random variables arise from
Continuous random variables arise from
Measuring processes
Definition of probability distribution
Definition of probability distribution
List of all possible values of with their probabilities
First condition for valid probability distribution
First condition for valid probability distribution
for all values of
Second condition for valid probability distribution
Second condition for valid probability distribution
Sum of all probabilities equals
