Question

Bias in a sampling method is

a. any difference between the sample result and the truth about the population.

b. the difference between the sample result and the truth about the population due to

using chance to select a sample.

c. any difference between the sample result and the truth about the population due to

practical difficulties such as contacting the subjects selected.

d. any difference between the sample result and the truth about the population that

tends to occur in the same direction whenever you use this sampling method.

e. racism or sexism on the part of those who take the sample.

Short answer

The correct option is:

c. any difference between the sample result and the truth about the population due to practical difficulties such as contacting the subjects selected.

Step-by-step solution

Given information

We have been given four options from which we have to select the correct one.

a. any difference between the sample result and the truth about the population.

b. the difference between the sample result and the truth about the population due to

using chance to select a sample.

c. any difference between the sample result and the truth about the population due to

practical difficulties such as contacting the subjects selected.

d. any difference between the sample result and the truth about the population that

tends to occur in the same direction whenever you use this sampling method.

e. racism or sexism on the part of those who take the sample.

Explanation

Selection bias occurs when a portion of the population is excluded, measurement or response bias occurs when a method produces numbers that differ from the true value, and nonresponse bias occurs when data is not available for everyone in the sample.