Measures of Central Tendency

To find the ________, add up all the numbers, then divide by how many numbers there are.

• mean

• median

• mode

• sum

Find the mean of the numbers below:

1, 3, 5, 7

• 2

• 4

• 6

• 8

Find the mean of these numbers: 2, 4, 4, 3, 2.

• 2

• 3

• 4

• 5

Dr. Dela Cruz is a dentist. He needs to report on the average number of cavities that his patients have. Below is the number of cavities of her patients;

1, 1, 5, 6, 3, 8

• 6

• 5

• 4

• 3

To find the ________ you put all numbers in order from least to greatest and find the number that is in the middle.

• mean

• median

• mode

• sum

What is the median of 1, 3, 1, 2, 4?

• 1

• 2

• 3

• 4

What is the median of the following data set: 1, 1, 2, 4, 4, 6?

• 1

• 2

• 3

• 4

What is mode?

• the number that occurs the most in a data set

• the average of all the numbers

• the middle number in the data

• the range of the data

 If a data set is bimodal, how many modes does it have?

• 1

• 2

• 3

• 4

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

• 10

• 11

• 12

• 13