A138B- Samples and Surveys

1. Rei lives in Los Angeles, and runs a website. He creates an optional survey on his site, asking for people's favorite movie snack.

What is the population from which the sample is selected from?

People using the internet

People visiting his site

People that like to watch movies

Every person in Los Angeles

Question 1 of 12

2. Rei lives in Los Angeles, and runs a website. He creates an optional survey on his site, asking for people's favorite movie snack.

What type of sample is this?

Stratified

Random

Systematic

Self-selected

Question 2 of 12

3. Sam is doing a survey on Staten Islanders' favorite pizza place. He stands outside Staten Island Pizza Plaza, and surveys every 5th person that walks in. Is his survey biased?

No, because he is questioning every 5th person at random.

No, because he is questioning people on Staten Island.

Yes, because people eating at this particular pizza place are more inclined to name this one as their favorite.

Yes, because he should be questioning every 10th person.

Question 3 of 12

4. An insurance company selects a random group of their employees' adult relatives to evaluate their services through a survey. Is the sample biased or unbiased?

Unbiased. because it is an accurate representation of the population.

Unbiased, because the company is using a survey.

Biased, because the company is using adults.

Biased, because everyone in the sample is related to an employee and it doesn't provide an accurate representation of the population.

Question 4 of 12

5. The Student Organization is holding a schoolwide Ugly Holiday Sweater Contest. They choose all 5 finalists from students in period 5 lunch. Was this biased or unbiased?

Unbiased, because the students chosen go to this school.

Unbiased, because they chose five finalists.

Biased, because the participants are not randomly selected.

Biased, because they chose from only one lunch period.

Question 5 of 12

6. Mary placed 5 different types of feed in her parrots' cage, and took note of which one they preferred. What type of study was this?

Survey

Observational

Experimental

None of the above

Question 6 of 12

7. Susan gave one dog fiber-rich food, and the other one regular dog food. Then, she had both of them run through an obstacle course, and recorded the results. What type of study was this?

Survey

Observational

Experimental

None of the above

Question 7 of 12

8. Which of the following is a biased question?

What is your favorite type of candy?

What is your favorite holiday?

Is blue your favorite color?

What type of movies do you like?

Question 8 of 12

9. Which of the following is a biased question?

What if your favorite animal?

Do you want a cheeseburger or the same, old regular burger?

What is your favorite sport?

What do you buy most often at the market?

Question 9 of 12

10. Which is unbiased?

Do you like chocolate? If so, milk or dark?

Chocolate is the best sweet out there, agree or disagree?

What is your preferred dessert?

Do you like regular lollipops or delectable chocolates?

Question 10 of 12

11. Select the choices that demonstrate a qualitative data set.

Scarf color of students

Amount of gas used on road trip

Measurements of cupcake ingredients

Lollipop flavors

Type of material used to make picture frame

Type of pets in the neighborhood

Question 11 of 12

12. Select the choices that demonstrate a quantitative data set.

Picture frame dimensions

Color of fonts

Class average on a quiz

Amount of rainfall this spring

Growth of plant in English classroom

Zodiac signs of students in Astrology class

Question 12 of 12