Stats

What is the median?

• 62

• 58

• 66

• 60

What percent of the data is between 25 and 30 on the number line?

• 25%

• `50%

• 75%

• 100%

A teacher examined 17 different tests from each of her math classes.  Each class had the same number of tests.  Is this sample of the tests likely to be biased?

• yes

• no

A small town as 2500 residents.  In a random sample of 125 residents, 2 have the flu.  Predict the number of residents of the town who have the flu.

• 20

• 40

• 200

• 400

The table shows the results of a survey of 200 people attending a hockey game.
The attendance for the hockey game is about 25,000 visitors each game.  Based on the table, how many people out of 25,000 could be expected to buy a pennant?

• 1,375

• 1,650

• 2,750

• 3,850

A high school has 1500 students.  In a random sample of 50 students, 32 own one or more pets.  Predict the number of students at the high school who own one or more pets.

• 480

• 960

• 48

• 96

_______ is a part of a group being surveyed.

• Sample

• Population

• Random Sample

• Quartile

The ___ is the data item(s) that occur the most often.

• mean

• median

• mode

• range

Find the mean of the data set.

• 31

• 51

• 27

• 30

A(n) ____ of a data set is much greater or much less than the other data values.

• mean

• median

• mode

• outlier