Measures of Center and Spread Practice!

A group of students took a recent test and had the following scores: 89, 91, 94, 94, 94, 96, 97

If a student makes up the test late and adds the score "60" to the data set, which of the following will change?

• Mean

• Median

• Mode

• Range

• A.) 4

• B.) 7

• C.) 8

• D.) 11

• E.) 12

The table given summarizes Advanced Placement (AP) Statistics exam scores for 178 high school students in a given county.

What is mode of the scores?

• 1

• 2

• 3

• 4

• 5

The table given summarizes Advanced Placement (AP) Statistics exam scores for a sample of high school students in a given county.

How many total students’ scores are given in the table?

• 5

• 15

• 178

• 193

The table given summarizes Advanced Placement (AP) Statistics exam scores for a sample of 178 high school students in a given county.

What is the median AP Stat exam score?

• 2

• 3

• 4

• 5

• 40

The table given summarizes Advanced Placement (AP) Statistics exam scores for a sample of 178 high school students in a given county.

What is the mean AP Stat exam score?

• 3

• 3.06

• 3.55

• 108.8

The table given summarizes Advanced Placement (AP) Statistics exam scores for a sample of 178 high school students in a given county.

What is the range of AP Stat exam scores?

• 1

• 2

• 3

• 4

• 1 to 5

The dot plot shows the amount of money 25 students spent on snacks. (The sloppy red numbers tell you how many dots there are to save some time counting).

Calculate the average amount of money spent on snacks Please do this without listing each data value--use your notes!

• 1

• 3

• 3.64

• 8.3

• 91

The dot plot shows the amount of money 25 students spent on snacks. (The sloppy red numbers tell you how many dots there are to save some time counting).

Calculate the median amount of money spent on snacks Please do this without listing each data value--use your notes!

• 1

• 3

• 4

• 5

• 6

The dot plot shows the amount of money 25 students spent on snacks. (The sloppy red numbers tell you how many dots there are to save some time counting).

What is the mode of the amount of money spent on snacks?

• 1

• 2

• 4

• 5

• 7