A sample of households in a community is selected at random from the telephone directory. In this community, 4% of households have no telephone, 10% have only cell phones, and another 25% have unlisted telephone numbers. The sample will certainly suffer from which of the following? a) undercoverage.
b) false responses.
c) nonresponse.

a) undercoverage.

Step-by-step explanation:

Here, 4% of households have no telephone, 10% have only cell phones, and another 25% have unlisted telephone numbers.

It shows that data inadequately represented in the sample.

Thus, the sample will suffer from undercoverage.

Correct option: a) undercoverage.

3

step-by-step explanation:

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: