Best Measure of Center and Spread

Which measures are affected by the outlier? (you need to find the mean, median, and mode without the outlier to answer this)

• mean

• mean and median

• mean, median, and mode

• median

What did the outlier do to the mean and median in the data set 1, 1, 1, 2, 2, 3, 4, 5, 5, and 25?

• Nothing

• They were both greater with the outlier.

• They were both less with the outlier.

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode...

12,10,10,10,13,12,11,13,10

• 13

• 12

• 11

• 10

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

What is the value of the median without the outlier included?

• 8.5

• 9

• 9.5

• 11

To find the mean of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items

What is the mode?

• number occuring the most

• the average

• Difference between maximum and minimum

• the middle number

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.
12,10,10,10,13,12,11,13,10

• 13

• 12

• 11

• 10

Find the median:
5, 6, 3, 9, 0, 4, 1, 2, 7

• 4

• 4.1

• 5

• 4.5

What is the mode in this set of numbers:
7, 14, 20, 3, 7, 14, 2, 14, 7

• 7

• 20

• 7 & 14

• none of the above