In this Grade 6 lesson from Reveal Math, Course 1, students learn how to calculate the mean and identify the median as measures of center that summarize a numerical data set with a single value. Students practice finding the mean by dividing the sum of data values by the number of values, and explore the mean as the balance point of a dot plot. The lesson also teaches students how to find a missing data value when the mean is known, using both a balance-point method and an algebraic equation.
Section 1
Calculating the Mean (The Average)
The most common measure of center is the mean, often referred to simply as the "average." It represents a fair share of the total.
To compute the mean:
Mean = (Sum of all data values) / N
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter
Expand to review the lesson summary and core properties.
Section 1
Calculating the Mean (The Average)
The most common measure of center is the mean, often referred to simply as the "average." It represents a fair share of the total.
To compute the mean:
Mean = (Sum of all data values) / N
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter