Mean, Median, Mode, Range, Weighted Averages

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 sorted in ascending order. If there is an even number of observations, the median is the average of the two middle numbers.

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

What is a Weighted Average?

Back

A weighted average is an average that takes into account the relative importance or frequency of each value in the data set.

Front

How do you calculate the Mean?

Back

To calculate the mean, sum all the values in the data set and divide by the total number of values.

Front

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

Back

To find the median in an odd set, sort the numbers and select the middle number.

Front

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

Back

To find the median in an even set, sort the numbers and average the two middle numbers.

Front

What is the formula for calculating Range?

Back

Range = Maximum value - Minimum value.

Front

How do you calculate a Weighted Average?

Back

Multiply each value by its weight, sum these products, and then divide by the total of the weights.