Statistical Questions and Collecting Data

Chosen at random, 580 customers at a car dealership are contacted and asked their opinions of the service they received.
This is what type of sample?

• convenience

• stratified

• simple random sample

• cluster

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys, so she randomly selects five students from the class to survey, paying no attention to their gender.
This is a form of:

• Cluster Sampling

• Systematic Sampling

• Stratified Sampling

• Simple Random Sampling

A poll about favorite sports is taken from 100 seniors in a high school where the senior class has 575 students. 23% of respondents said that baseball was their favorite sport.
The "100" is the ______

• Sample Size

• Population Size

• Statistic

• Parameter

A poll about favorite sports is taken from 100 seniors in a high school where the senior class has 575 students. 23% of respondents said that baseball was their favorite sport.
The "575" is the ______

• Sample Size

• Population Size

• Statistic

• Parameter

How old are the paintings in the museum?

• Non-Statistical

• Statistical

An entire set of items from which data can be selected

• sample

• popultion

• survey

• observational study

A question that anticipates variability

• statistical question

• observational study

• quantitative data

• population

The number of times a number or item occurs in a data set.

• frequency

• data

• mean

• mode

The observation or value that occurs the most

• average

• median

• mean

• mode

"How tall are the students in your class?" is an example of...

• Non-statistical Question with Numerical Data

• Statistical Question with Categorical Data

• Statistical Question with Numerical Data