Practice Exam Quiz #2 STATISTICS

What is the result of dividing 9786 by 2?

• 4893

• 4892

• 4894

• 4895

What is primary data?

• Data gathered or recorded by the individual

• Data that is gathered by someone else and used somewhere else

• Data found in textbooks

• Data from encyclopedias

Which of the following is an example of a primary source?

• Letters

• Textbooks

• Encyclopedias

• Atlases

Which of the following is an example of a secondary source?

• Diaries

• Government records

• Newspaper articles

• Autobiographies

What is the term used to describe a smaller group selected from a larger population for study?

• Census

• Sample

• Group

• Collection

Economist Bernardo wants to know how many Americans in the Eastern United States have a college degree. Determine whether the following data set is a population or a sample in the given context: Every American in the Eastern United States.

• Population

• Sample

Researcher Chaz is interested in knowing the average height of every person in the United States. Determine whether the following data set is a population or a sample in the given context: 1000 randomly selected people from the United States.

• Population

• Sample

Forest ranger Ambrose wants to know the average circumference of all the trees in a forest. Determine whether the following data set is a population or a sample in the given context: A group of 50 trees randomly selected from the forest.

• Population

• Sample

Governor Coburn wants to know the average income of every resident in the state of Brisbane. Determine whether the following data set is a population or a sample in the given context: All residents living in Fortitude Valley, Brisbane.

• Population

• Sample

How far did the cyclist travel in total?

• 30 km

• 25 km

• 20 km

• 15 km