Mean / Median / Mode / Weighted Mean

Front

What is the definition of Mean?

Back

The Mean is the average of a set of numbers, calculated by adding all the values together and dividing by the number of values.

Front

What is the definition of Median?

Back

The Median is the middle value in a data set when the numbers are arranged in ascending or descending order.

Front

What is the definition of Mode?

Back

The Mode is the value that appears most frequently in a data set.

Front

What is the definition of Weighted Mean?

Back

The Weighted Mean is the average of a set of values, where each value is multiplied by a weight that reflects its importance.

Front

How do you calculate the Mean of a data set?

Back

Add all the numbers in the data set and divide by the total number of values.

Front

How do you find the Median in an odd-numbered data set?

Back

Arrange the data in order and select the middle number.

Front

How do you find the Median in an even-numbered data set?

Back

Arrange the data in order and calculate the average of the two middle numbers.

Front

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

Back

In the data set {1, 2, 2, 3, 4}, the Mode is 2 because it appears most frequently.

Front

What is an example of a data set with no Mode?

Back

In the data set {1, 2, 3, 4}, there is no Mode because all numbers appear only once.

Front

What is an example of a Bimodal data set?

Back

In the data set {1, 1, 2, 2, 3}, the Modes are 1 and 2.