Measures of Central Tendency

The ____________ is the measure of central tendency that represents the middle number in a set of data.

• Mode

• Average

• Principal

• Median

In order to find the ____________, we add up all of the numbers in the data set and then divide the sum by the number of numbers.

• Average

• Mode

• Upper Quartile

• Median

The number that appears the most in a data set is commonly known as the ___________.

• Mean

• Range

• Mode

• Average

How do we find the median when there are exactly TWO numbers in the middle of the data set?

• We add up all of the numbers and divide by the number of numbers.

• Subtract the lower extreme from the upper extreme.

• Add the two numbers together and divide the sum by 2.

• Use the formula I = P x r x t

How do we find the median when there are exactly TWO numbers in the middle of the data set?

• We add up all of the numbers and divide by the number of numbers.

• Subtract the lower extreme from the upper extreme.

• Add the two numbers together and divide the sum by 2.

• Use the formula I = P x r x t

The following numbers were the result of data collected when students were asked how many pets they had in there home:

0, 0, 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 4, 6

What is the range of the data?

• 1.9

• 6

• 5

• 2

Calculate the value of the mean for the following data set: 0, 1, 1, 1, 2, 2, 3, 4, 5, 6.

• 1

• 2

• 2.5

• 6

Calculate the value of the mode for the following data set: 0, 1, 1, 1, 2, 2, 3, 4, 5, 6.

• 1

• 2

• 2.5

• 6

Calculate the value of the median for the following data set: 0, 1, 1, 1, 2, 2, 3, 4, 5, 6.

• 1

• 2

• 2.5

• 6

During Michael Jordan's last 5 years of playing basketball, these were his average scores for points per game:

30.4, 29.6, 28.7, 22.9, 20.0

Find the mean pointsper game for those 5 years.

• 32.9

• 26.32

• 28.7

• 22.32