Stats Unit 1 Test Review

Is this a valid statistical question and what type of data would you need to collect?

On average, how many books does each person in the United States read each year?

• Statistical question

  requiring numerical data

  to answer it

• Statistical question

  requiring categorical

  data to answer it

• Non-statistical question

Is this a vaid statistical question?

How many acts are in the play Romeo and Juliet?

• Non-statistical question

• Valid Statistical question

A student surveys mathematics teachers at her school to get their opinion on teaching.  What is the sample?

• All teachers in the world.
• All teachers within the school.
• All mathematics  teachers in the school.
• All teachers except mathematics teachers.

Last years, 34% of Mrs. Pearce’s students earned an A – grade from her class.

Identify the population

• 34% of Mrs. Pearce's students

• Mrs. Pearce's students

• Mrs. Pearce's classes

• A-grades

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected. What type of sampling was used?

• systematic

• simple random sample

• convenience

• voluntary response

Marianne wanted to know students' opinion on the new schedule at school. She survey's the first 30 students who come into her class. What type of sampling was used?

• Convenience Sampling

• Systematic Random Sampling

• Simple Random Sampling

• Voluntary response

Farmer Joe's apple tree farm is set up in 100 rows.  He counts the number of apples produced on every 10th row to estimate the number apples produced on the whole farm.  This is _____________ sampling.  

• Random
• Stratified
• Voluntary-Response
• Systematic

Which of the following is an example of quantitative data?

• High School Graduate or Not

• Monthly paycheck amount

• Whether or not you are employed

• What type of vehicle you drive

Which of the following is a categorical variable?

• Flight Length

• Flight Number

• Number of Passengers

• Fuel Consumption

Volunteers for a politician's campaign called 100 randomly selected citizens to conduct a survey. Only 50 people agreed to answer the survey questions, and most of them were supporters of the candidate. This is an example of...

• Response Bias

• Nonresponse Bias

• Undercoverage Bias