Prob 2

1. A sample in which every person, object, or event has an equal chance of being selected.

• A. Random sample.

• B. Biased sample.

2. When a sample does not accurately represent the population it is a:

• A. Unbiased sample

• B. Biased sample

4.  Carlos wants to know the favorite sport of people at his school so he asks his baseball team.

• A. Biased

• B. Unbiased

5.  A hospital wants to open a gym. They ask the night-shift ER staff when they would use the gym.

• Biased

• Unbiased

6. Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

• A. Thirty randomly selected students from her school

• B. Thirty students who are rarely tardy

• thirty of her friends

8. At a middle school, the 7th graders will conduct a survey for where to go on a field trip.
Which method will result in the least biased decision?

• A. To randomly ask 8th grade students who went on a field trip last year.

• B. To randomly choose some 7th grade students to select a location.

_______ is a part of a group being surveyed.

• Sample

• Population

• Random Sample

• Quartile

_________ is a sample in which each individual or object in the entire population has an equal chance of being selected.

• Sample

• Population

• Random Sample

• Quartile

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

• Sample

• Population

• Random Sample

• Quartile

If you score 76, 85, 97, and 83 on your math tests, what would your median score be? 

• 84

• 90

• 85

• 88