Mean as a Balance Point, Effect of Measures 6th Due 3-13

When asked to find the balance point, you are finding the...

• Mean
• Median
• Mode
• Range

What is the balance point from the given set of data?

• 4

• 5

• 6

• 7

Which number line represents a set of data with a mean of 8?

• 
• 
• 
• 

This line plot shows the number of books that a group of students read. Use this data to determine where on the line plot the mean will appear.

• 3

• 4

• 5

• 6

If the balance point for a set of data is 12, what 2 values can be added to the data to keep the balance point the same?

• 6 and 19

• 8 and 14

• 2 and 15

• 5 and 19

Given the following data, which statement is NOT true?

9, 17, 10, 11, 15, 10

• If 9 is removed, the mean will decrease.

• If 11 is removed, the median will decrease.

• If 11 is removed, the mean will increase.

• if 9 is removed, the median will increase

The ages of the kids in the junior swimming club are as follows:

12, 8, 9, 13, 8, 10

If another 10 year-old joins the swim club, what effect will there be on the measures of center?

• The mean will increase and the mode will stay the same.

• The mean will increase and the mode will change.

• The mode will change and the median will decrease.

• The mean will decrease and the median will increase.

Which measure of center best represents this set of data?
12, 13, 11, 16, 31, 14, 10, 15

• Mean
• median
• mode

What measure of center is best to use when we have outliers?

• mean

• median

• mode

• range

It is possible to have three numbers in the middle of a data set.

• True
• False