Measures of Central Tendency with Graphing Calculator

What is the mode in the following numbers? [3, 24, 3, 7, 30, 1, 3, 7, 3]

• 3 and 7 both are modes

• 1 and 7 both are modes

• 3 only

• 7 only

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

• 2

• The minimum

• The maximum

• The number of items

Which is the MIDDLE?

• Mean

• Median

• Mode

• Range

Which is the closest to what most people would call the "average?"

• mean

• median

• mode

• range

Which is the number that appears the MOST often?

• mean

• median

• mode

• range

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

What is the Mode?
4,8,5,17,5,4,9,5,6,82

• 4

• 9

• 84

• 5

In order to find the median, the data must be sorted from least to greatest first.

• True

• False

Gary has taken an aptitude test 8 times and his scores are 96, 98, 98, 105, 36, 87, 95, and 93. Which measure of central tendency is most appropriate for his scores?

• Median

• Mode

• Mean

• Range

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