Grouped Data

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What is the formula for calculating the midpoint of a class interval?

The midpoint is calculated as: $$\text{Midpoint} = \frac{\text{Lower limit} + \text{Upper limit}}{2}$$

What is a cumulative frequency table?

A cumulative frequency table shows the running total of frequencies up to each class interval.

What does 'f' represent in the mean formula for grouped data?

'f' represents the frequency of each class interval in the dataset.

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