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chance variable

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Noun1.chance variable - a variable quantity that is randomchance variable - a variable quantity that is random  
variable quantity, variable - a quantity that can assume any of a set of values


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These repeated trials are important in an experiment because they make it less likely that some chance variable (like a swimmer having an "off" day) will alter the results.
Distinguish between the decisions (variables you can control), chance variables (uncertain quantities you cannot control), and objectives (criteria you want to maximize).
 
 
 
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