Question

Which of the following is an example of inferential statistics?

a. computing the mean score on the Psyc 241 exam
b. creating a frequency distribution of UND student ages
c. surveying a sample of ND residents about their attitude toward the governor
d. computing the standard deviation of the income of Grand Forks residents

Answer 1

An example of inferential statistics is surveying a sample of ND residents about their attitude toward the governor. The correct option is (c).

Step-by-step explanation:

An example of inferential statistics is surveying a sample of ND residents about their attitude toward the governor.

Inferential statistics is used to make generalizations about an unknown population based on sample data. By surveying a sample of ND residents, we can estimate the attitudes of the entire population of residents toward the governor.

Other options, such as computing the mean score on the Psyc 241 exam, creating a frequency distribution of UND student ages, or computing the standard deviation of the income of Grand Forks residents, are examples of descriptive statistics, which organize and summarize data without making generalizations about a population.

Answer 2

Surveying a sample of ND residents about their attitude towards the governor is an example of inferential statistics, as it uses sample data to make general predictions about a larger population.

Step-by-step explanation:

The question is asking for an example of inferential statistics, which involves making inferences about a population based on a sample. The correct answer from the options provided is: surveying a sample of ND residents about their attitude toward the governor. This involves using sample data to make generalizations about a larger population, which is the essence of inferential statistics. Other options like computing the mean score, creating a frequency distribution, or computing the standard deviation represent descriptive statistics, which summarize the properties of a dataset without making inferences about a larger population.