IM3 Chapter 1 Review

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?

• 5

• 6

• 9

• 11

At Donald's Doughnuts, the number of doughnut holes in a bag can vary. Help Donald find the mode of the number of doughnut holes per bag described in the sample below:

{12, 10, 10, 10, 13, 12, 11, 13, 10}

• 13

• 12

• 11

• 10

The number of miles that Jenna cycled each week is shown below:

32, 42, 28, 52, 48, 36, 31

What is the median number of miles Jenna cycled?

• 24

• 39

• 36

• 52

Find the range of the scores below.

5, 15, 10, 20, 15, 10, 15

• 5

• 10

• 15

• 20

What is an outlier?

• A value that is much less or much greater than the other values in a data set.

• The difference between the upper and lower quartiles of a data set.

• The mean of the distances from each data value in a set to the mean of that set.

• The difference between the greatest and least numbers in a data set.

If you have two numbers in the middle, you should _____.

• add them together and divide by two

• find the number in between the two

• find the mean of the two numbers

• all of these

Find the mode of the data set;

Identify the outlier, and

Find the mode excluding outliers:

100, 100, 100, 20, 120, 90.

• 110, 120, 100

• 100, 100, 100

• 20, 100, 20

• 100, 20, 100

A football team keep records of the number of goals it scores per match during a season. Find the mean number of goals per match.

Which city has a higher median?

• Millersburg
• Arcadia

What percentage of the data is between 90 and 140?

• 25 %
• 50%
• 75%
• 100%