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 data set.

Front

How do you calculate the weighted average?

Back

To calculate the 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?

Back

Average = (Sum of all values) / (Number of values)

Front

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

Back

6 books

Front

How do you find the average number of students per class?

Back

Average number of students per class = Total number of students / Total number of classes.

Front

What is the significance of weighting in averages?

Back

Weighting allows certain values to have more influence on the average, reflecting their importance in the overall calculation.

Front

If a professor weights tests at 50%, attendance at 25%, and final exams at 25%, how do you calculate a student's final grade?

Back

Multiply each grade by its weight, sum the results, and divide by the total weight.

Front

What is Clayton's average points per game if he scored 10, 14, and 6 points in three games?

Back

10 points

Front

How do you calculate a player's slugging percentage?

Back

Slugging percentage = (Total Bases) / (At Bats), where Total Bases = Singles + (2 x Doubles) + (3 x Triples) + (4 x Home Runs).

Front

What is the total number of books Mary read over three months?

Back

18 books (6 + 4 + 8).