Mean, Median, Mode, and Range

Front

What is the definition of Mean?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Front

What is the definition of Median?

Back

The median is the middle value in a list of numbers when they are arranged in order.

Front

What is the definition of Mode?

Back

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

Front

What is the definition of Range?

Back

The range is the difference between the highest and lowest values in a data set.

Front

How do you find the Mean of the numbers 10, 20, 30?

Back

Add the numbers (10 + 20 + 30 = 60) and divide by the count (3). Mean = 60 / 3 = 20.

Front

How do you find the Median of the numbers 3, 1, 4, 2?

Back

Arrange the numbers in order (1, 2, 3, 4). The median is the average of the two middle numbers (2 + 3) / 2 = 2.5.

Front

How do you find the Mode of the numbers 1, 2, 2, 3, 4?

Back

The mode is 2, as it appears most frequently.

Front

How do you find the Range of the numbers 5, 10, 15, 20?

Back

Range = Highest value - Lowest value = 20 - 5 = 15.

Front

What is an Outlier?

Back

An outlier is a value that is significantly different from the other values in a data set.

Front

Identify the Median of the data set: 8, 3, 5, 7, 9.

Back

Arrange the numbers (3, 5, 7, 8, 9). The median is 7.