Finding the Mean

The video tutorial explains how to find the mean, or average, of a set of scores. It begins by defining the term 'mean' and then describes the process of adding all values and dividing by the number of values to find the average. The tutorial uses an example of five test scores, demonstrating the calculation step-by-step to arrive at a mean score of 82.

What does the term 'mean' refer to in mathematics?

• The highest value in a set

• The middle value in a set

• The average of a set of values

• The lowest value in a set

Which of the following steps is necessary to find the mean?

• Subtract the smallest value from the largest

• Multiply all values together

• Add all values and divide by the number of values

• Find the difference between the highest and lowest values

If you have five scores, what should you divide the total sum by to find the mean?

• 4

• 6

• 5

• 3

In the example given, what was the total sum of the five scores?

• 430

• 400

• 420

• 410

What was the mean score calculated in the example?

• 82

• 81

• 83

• 80