Grouped frequency tables are a way of showing data in groups. Set up a new column to write the midpoint of each class. Set up another column to multiply each midpoint by its frequency. Find the sum of ...
Inequalities close inequalityUsed to identify a range of values, eg -1 ≤ × ≤ 2 means values from -1 to 2. are often used to describe the groups in the table. For example, the interval 0 < 𝑡 ≤ 5 means ...
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