Assignment

1. Determine if the following situation is biased or unbiased:

500 students at a local high school are randomly chosen and asked what their favorite local restaurant is.

A. biased
B. unbiased

2. Which of the following situations would be considered biased?

A. You ask every 10th person leaving a Cincinnati Reds baseball game what their favorite ice cream flavor is.
B. You randomly choose 200 people at a concert and ask them who their favorite baseball team is.
C. You ask the 10 closest people sitting next to you at a Cincinnati Bengals game who they think the best professional football team is.

3. Every 10th person at a shopping mall is asked what store they shop at the most each month. What type of sampling method does this describe?

A. Random
B. Convenience
C. Stratified
D. Systematic

4. Every student in a class has his/her name written on a card and placed in a bowl. The teacher selects one name from the bowl to receive a homework pass. What type of sampling method does this describe?

A. Random
B. Convenience
C. Stratified
D. Systematic

5. A politician's campaign staff surveys 1,000 random registered voters from the town of Algebraland to ask who the voters will be voting for in the upcoming election. What is the population?

A. The campaign staff
B. All registered voters
C. The 1,000 registered voters from Algebraland

6. A politician's campaign staff surveys 1,000 random registered voters from the town of Algebraland to ask who the voters will be voting for in the upcoming election. What is the sample?

A. The campaign staff
B. All registered voters
C. The 1,000 registered voters from Algebraland

7. Classify the following as quantitative or categorical:
Out of a class of 28 students, 47% are girls.

A. Quantitative
B. Categorical

8. Classify the following as quantitative or categorical:
Dogs have four legs, are furry, and they bark.

A. Quantitative
B. Categorical

9. A teacher wants to determine if a new method for teaching math helps her students perform better on their unit test. She uses the new teaching method with one of her classes and teaches the same way as always with her other class. She compares the scores of each class on the unit test to see if the new teaching method was effective. What type of study does this describe?

A. Experimental
B. Random
C. Observational

10. A teacher asks high school students how many hours they studied for a test and compares their responses to their test scores. What type of study does this describe?

A. Experimental
B. Random
C. Observational.