Alake tahoe community college instructor is interested in the mean number of days lake tahoe community college math students are absent from class during a quarter. consider the following. x = number of days a lake tahoe community college math student is absent in this case, x is an example of which of the following?

a. variable
b. population
c. statistic
d. data

a. variable

Step-by-step explanation:

X = number of days a Lake Tahoe Community College math student is absent

X is a random variable.

A random variable is a variable whose value is a numerical outcome of a random phenomenon.

A random variable's possible values might represent the possible outcomes of a yet-to-be-performed experiment.

Random variables are often denoted with  capital letter s and they can be discrete or continuous.

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

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: