Measures of Central Tendency Money

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

What is the mode?

• The value that occurs the most often in a data set

• The middle number in an ordered set of data

• The sum of all the numbers in a data set divided by the size

• The sum of the between the greatest and the least elements, divided by two

Match the following vocabulary with the definitions

• Mean

• the most frequently occurring value(s)

• Mode

• the difference between the largest and smallest values in a data set

• Range

• a value that describes the center or middle of a data set

• Measures of Central Tendency

• the average of values, sum of all values divided by how many values

• Median

• the middle value, when the data is ordered from least to greatest

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number

• Add the two numbers in the middle & then divide by two.

• They are both the median

• None of the above

Find the mean.

• 10

• 20

• 30

• 40

The salary of the employees in the office were $15,000; $18,000; $16,000; $14,000; $90,000; and $17,000.  What is the best measure of the central tendency of the salaries?

• 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