On hundred and fifty-one (151) De Anza College students were surveyed and asked two questions: (1) How many units are you taking this quarter, and (2) How many hours of television do you watch per day. The chart below summarizes the data. We wish to conduct a hypothesis test to determine if the number of units a student takes is independent of the number of hours per day of television the student watches.

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation:

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step-by-step explanation: