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4 cards from this section. Quick, good the night before a test.
What is the formula for finding the mean of grouped data?
Focus on the concept of summation and aggregates.
How do we find the mode of a given frequency distribution?
Look for the count of occurrences in classes.
What does Σ denote in statistics?
Think about what mathematical operation is denoted by this symbol.
True or False: The median is always equal to the mean in a grouped data distribution.
Consider how averages are affected by outliers.
Given a frequency table with data, calculate the mean, median, and mode. Discuss how they compare.
Ensure your calculations are based on organized data.
If a new frequency class is added, how might that shift the mean? Calculate the new mean after addition.
Recheck how the new class frequency impacts the totals.
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