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2 cards from this section. Quick, good the night before a test.
What is the arithmetic mean of 4, 6, and 10?
Add the numbers together and divide by 3.
True or False: The sum of deviations around the mean is always greater than zero.
Consider the definition of deviations.
What is the sum of deviations from the arithmetic mean?
Think about whether positives and negatives balance.
True or False: Extreme values can significantly impact the arithmetic mean.
Recall situations where an outlier changed the average.
Given the numbers 5, 7, 8, 13, and an outlier 50, calculate A.M. and analyze its significance.
Use the sum and count method carefully.
Create a dataset where the mean and median differ significantly, and explain why.
Check for high or low extremes influencing averages.
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