A random variable is any variable for which the numerical value is determined by a random experiment, and, thus, by chance.
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Q1: There are two types of random variables:
Q11: A table, graph, or formula that associates
Q16: If x is a discrete random variable,
Q21: A false negative in screening tests is
Q65: All the outcomes contained in one or
Q83: The additive rule of probability is used
Q84: If A and B are dependent events,
Q88: A set of all possible values of
Q90: Given a set of events 
Q92: The time required to assemble a computer
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