Statistics Review

_______ is a part of a group being surveyed.

• Sample

• Random Sample

• Population

• Bias

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

• Sample

• Random Sample

• Population

• Bias

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

• Sample

• Random Sample

• Population

• Bias

The TV station wants to get the opinion of viewers on the look of a new game-show set.  The station's staff calls random people in the phone book.  Is this biased or unbiased?

• Biased

• Unbiased

A student wants to know which type of pizza the students at his high school prefer. Which option would give an unbiased, representative sample?

• Asking all the students in the hot lunch line.

• Asking every other student who gets off a school bus.

• Asking 10 random students from each homeroom.

• Asking all the 10th graders.

The number of miles that Jenna cycled each week for a 7-week period is shown: 36, 42, 28, 52, 48, 36, 31 What is the median number of miles Jenna cycled?

• 24

• 39

• 36

• 52

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 

9, 8, 12, 6, 10

What is the mean number of pages she wrote per day?

• 9

• 5

• 6

• 11

Find the mean number of cards decorated.

• 8

• 7

• 10

• 9

Find the range.

• 15

• 21

• 14

• 6

Which measure of center will best represent the following data?

3, 3, 9, 15, 17, 24, 317

• Mean

• Median

• Mode

• Range