Let X be the number of students who show up for a professor's office hour on a particular day. Suppose that the pmf of X is p(0) = 0.30, p(1) = 0.15, p(2) = 0.20, p(3) = 0.25, and p(4) = 0.10. (a) Draw the corresponding probability histogram.

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Step-by-step explanation:

In order to draw the probability histogram, i enter this probability mass function in excel, as follows:

xP(x)

00.3

10.15

20.2

30.25

40.1

then, i select the drawing of the histogram in the insert tool of excel.

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:

the answer i believe is 27 units.

step-by-step explanation: