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2 cards from this section. Quick, good the night before a test.
Calculate the mean of the following numbers: 10, 20, 30.
Add the numbers and divide by how many there are.
What is the formula for finding the Arithmetic Mean?
Identify what each component represents first.
What is the Arithmetic Mean?
Recall the definition of mean.
True or false: The mean is affected by extreme values.
Think about how an outlier changes the average.
A restaurant records the following daily income for a week. Calculate the mean and comment on the impact of a high outlier: Rs 200, Rs 250, Rs 300, Rs 500, Rs 2000.
Compare the mean with the rest of the values.
Discuss how the mean differs from the median in a dataset where the values are Rs 1, Rs 1, Rs 1, Rs 1, Rs 100. Calculate both.
Identify the central positions for both calculations.
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