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3 cards from this section. Quick, good the night before a test.
What is the arithmetic mean of 5, 10, and 15?
Add the numbers and divide by the count.
Identify the median in the following set: 1, 3, 3, 6, 7, 8, 9
Middle number in an ordered list.
What is the mode in the set {1, 2, 3, 4, 4, 5}?
Identify the number that appears more than once.
True or False: The arithmetic mean is always the best measure of central tendency for skewed distributions.
Think about how extreme values impact the mean.
You have the following salaries: $50,000, $60,000, $65,000, $70,000, and $500,000. Calculate the mean and discuss how the outlier affects it.
Remove the outlier and recalculate the mean for comparison.
A dataset has the following ages: 15, 20, 20, 21, 22, 22, 25, 60. Determine both median and mode, and discuss any implications.
Sort the ages and find the positioning for the median.
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