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------------------------------------------------ Differentiate between inferential and descriptive statistics.

A survey on internet usage was conducted among a group of 200 students in the school cafeteria. It was found that 100 students spend at least two hours online every day.

Which of these is an example of descriptive statistics?

A. 50% of the students surveyed spend at least two hours online each day.
B. 50% of the students in the school spend at least two hours online each day.
C. 50% of the students in the cafeteria spend at least two hours online each day.
D. 50% of the students in a class spend at least two hours online each day.

Descriptive statistics summarizes data from a sample without making inferences, while inferential statistics makes predictions about a population based on a sample. The statement about 50% of the students surveyed spending two hours online is descriptive statistics.

Explanation:

The difference between inferential statistics and descriptive statistics lies in their purposes and methods. Descriptive statistics is used to summarize and describe the features of a dataset, providing simple summaries about the sample. Inferential statistics, on the other hand, involves making predictions or inferences about a population based on a sample of data from that population.

In the survey about internet usage among 200 students, the statement "50% of the students surveyed spend at least two hours online each day" is an example of descriptive statistics because it describes the actual findings of the survey without making predictions or inferences about the larger population.