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2 cards from this section. Quick, good the night before a test.
What is the arithmetic mean of the following numbers: 1, 3, 5?
Add the numbers and divide by how many there are.
Define grouped data.
Think about data summarized in tables.
What is the formula for calculating the arithmetic mean?
Remember the basic concept of average.
True or False: The Arithmetic Mean is sensitive to extreme values.
Consider how values affect an average.
A community has reported the following incomes: 200, 300, 250, 400, and 500. Use the Assumed Mean Method to calculate the mean.
Remember to first assume a value and calculate deviations from it.
The following are the frequencies of students' scores in a class: 30, 25, 15, 10. Calculate a suitable mean using the Direct Method.
Sum the products carefully!
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