Measures of Central Tendency

Front

What is the average of a set of numbers?

Back

To find the average, add up all the items and divide by the number of items.

Front

What is the Mode?

Back

The mode is the number that appears most frequently in a data set.

Front

Can a data set have more than one mode?

Back

Yes, a data set can have more than one mode.

Front

What should you do if you have two numbers in the middle of a data set?

Back

You should add them together and divide by two, or find the mean of the two numbers.

Front

What is the Median?

Back

The median is the middle number in a sorted data set.

Front

How do you find the median in an odd set of numbers?

Back

Arrange the numbers in order and select the middle number.

Front

How do you find the median in an even set of numbers?

Back

Arrange the numbers in order and find the average of the two middle numbers.

Front

What is the range of a data set?

Back

The range is the difference between the maximum and minimum values in the data set.

Front

What is the mean?

Back

The mean is the sum of all numbers divided by the count of numbers.

Front

What is an example of a data set with a mode?

Back

In the data set 2, 3, 4, 4, 5, the mode is 4.