Weighted Average

Front

What is a weighted average?

Back

A weighted average is an average that takes into account the relative importance or weight of each value in a dataset.

Front

How do you calculate a weighted average?

Back

To calculate a weighted average, multiply each value by its weight, sum these products, and then divide by the total of the weights.

Front

What is the formula for calculating the average number of items over a period?

Back

Average = (Total number of items) / (Number of periods)

Front

If Mary read 6 books in January, 4 in February, and 8 in March, what is the average number of books read each month?

Back

6 books

Front

Why would you use a weighted average instead of a traditional average?

Back

Because the value you are trying to calculate is made up of categories which each have different weights.

Front

What is the significance of weights in a weighted average?

Back

Weights determine the influence of each value on the overall average, allowing for a more accurate representation of the data.

Front

Calculate the weighted average of Test Average = [65, 75, 82, 88, 95] and Final Exam Grade = 88 with equal weights.

Back

Weighted Average = (65 + 75 + 82 + 88 + 95 + 88) / 6 = 82.33

Front

Clayton scored 10, 14, and 6 points in three games. What is his average points per game?

Back

10 points

Front

What is the formula for calculating a class grade based on weighted components?

Back

Class Grade = (Test Score * Test Weight) + (Quiz Score * Quiz Weight) + (Homework Score * Homework Weight) + (Classwork Score * Classwork Weight)