Mean, Median, Mode, Range

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 set of numbers when they 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 Range?

Back

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

Front

How do you calculate the Midrange?

Back

The midrange is calculated by adding the highest and lowest values together and dividing by 2.

Front

What is the formula for Weighted Mean?

Back

Weighted Mean = (Σ (value × weight)) / Σ (weights) where value is the score and weight is the frequency of that score.

Front

Given the scores: 90 (6 times), 96 (5 times), 80 (3 times), calculate the weighted mean.

Back

Weighted Mean = (90*6 + 96*5 + 80*3) / (6 + 5 + 3) = 90.

Front

How do you find the Median of a data set?

Back

To find the median, arrange the numbers in order and identify the middle value. If there is an even number of values, average the two middle values.

Front

What is the Median of the following data set: 36, 42, 28, 52, 48, 36, 31?

Back

The median is 36.

Front

What is the Range of the following scores: 155, 165, 138, 172, 127, 193, 142?

Back

The range is 66 (193 - 127).