Which one of these 'X' variables is a discrete random variable?
Group of answer choices
An experiment in chemistry is repeated many times and X is the time required for a reaction to occur in seconds.
A UPS package is randomly selected and X is the weight in pounds of the package.
A student is randomly selected and X is the distance they must travel in feet to go from their dorm room door to the door of their first class on Monday morning.
A student is randomly selected and X is the number of correct answers on a two question multiple-choice quiz.
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