Statistics Chapter Review

Determine if the numerical value describes a population parameter or a sample statistic.

56% of all the students at the local university eat out more than twice a week.

• Population Parameter

• Sample Statistic

Disneyland often surveys its guests as they exit a restaurant during their visit. The surveyor stands at the restaurant exit, counts the number of people leaving, and surveys every 25th guest.

This is a form of:

• Random Sampling

• Convenience Sampling

• Cluster Sampling

• Systematic Sampling

Choose the FALSE answer: Statistics is the science of

• collecting data

• organizing data

• interpreting data

• improving data

_______ is a part of a group being surveyed.

• Sample

• Population

• Random Sample

• Quartile

_______ is the entire group of objects or individuals considered for a survey.

• Sample

• Population

• Random Sample

• Quartile

Weight

• Categorical

• Quantitative

Which step is the Statistical Problem Solving Process involves developing a topic of interest to study?

• I. Ask a Question of Interest

• II. Produce/Gather Data

• III. Analyze Data

• IV. Interpret Results

A poll is taken from 100 seniors in a high school where the senior class has 575 students. This is an example of a  ______________.

• Sample

• Population

Identify the population: In a Gallup poll of 1236 adults, 9% said that bad luck happens on Friday the 13th. 

• All US citizens

• All superstitious adults

• 1236 US adults

• All US adults

The first quartile of the score distribution is equal to

• 3

• 20

• 23

• 43