Measures of Center

What is the median?

• The average of all numbers in a list.

• The middle number in a sorted list of numbers.

• The largest number in a list.

• The smallest number in a list.

What is the mode of the following numbers: 12, 10, 10, 10, 13, 12, 11, 13, 10?

• 10

• 12

• 13

• 11

Find the mode and range of the following numbers: 4, 6, 6, 8, 10, 4, 6.

• mode: 4, range: 6

• mode: 6, range: 4

• mode: 6, range: 6

• mode: 8, range: 6

If the numbers are 5, 7, 9, what is the range?

• 2

• 3

• 4

• 5

What is the range of these numbers: 15, 22, 18, 19, 22?

• 5

• 6

• 7

• 8

What does it mean if a number is the mode?

• It means that number occurs more frequently than any other number in the set.

• It is the smallest number in the set.

• It is the largest number in the set.

• It is the average of all the numbers in the set.

In a set of numbers, if the mode is 5, what can we say about the number 5?

• It appears more times than any other number in that set.

• It is the largest number in the set.

• It is the smallest number in the set.

• It appears only once in the set.

What is the range?

• The average of all numbers

• The difference between the largest and smallest number

• The sum of all numbers

• The middle value in a set of numbers

If the highest score is 100 and the lowest is 60, what is the range?

• 20 (100 - 80 = 20)

• 30 (100 - 70 = 30)

• 40 (100 - 60 = 40)

• 50 (100 - 50 = 50)

Find the median, mode, and range of the following numbers: 3, 5, 7, 9, 11, 8, 3.

• median: 6, mode: 5, range: 8

• median: 7, mode: 3, range: 8

• median: 8, mode: 3, range: 7

• median: 7, mode: 5, range: 9