Classify each of the following random variables as either discrete or continuous, (a) the fuel efficiency (mpg ) of an automobile O Discrete O Continuous (b) the amount of rainfall at a particular location during the next year O Discrete O Continuous (c) the distance that a person throws a baseball O Discrete Continuous (d) the number of strokes in a round of golf O Discrete Continuous (e) the tension (in pounds per square inch) at which a tennis racket is strung O Discrete O Continuous (f) the amount of water used by a household during a given month O Discrete Continuous (g) the number of people at a picnic O Discrete Continuous