Discrete random variables & probability distributions
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Question
What is a discrete random variable?
Answer
A variable that takes separate values, each with a probability.
Question
What must the probabilities of a distribution add to?
Answer
1.
Question
How do you find an unknown probability in a distribution?
Answer
Set the sum of all probabilities equal to 1 and solve.
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Topic 4.7 hub
Discrete random variables
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