Grouped Data

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How do you calculate the mid-point of a class interval?

The mid-point is calculated by averaging the lower and upper boundaries of the class interval: $$Midpoint = \frac{Lower + Upper}{2}$$.

What is the mode in the context of grouped data?

The mode is the class interval with the highest frequency in the frequency table.

What is the importance of class width in grouped data?

Class width determines the size of each interval and affects the distribution of frequencies; wider classes may overlook details.

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