- Afrequency
- Bclass mark
- Cwidth
- Dlower limit
Step-by-Step Solution
In a histogram, the height of a bar shows the frequency of that class interval; the width shows the class size.
Answer: A) frequency
In a histogram the height of each bar represents the ______ of the class interval.
Class 8Data HandlingData Handling
Key idea: Frequency distribution and class intervals
When data has many distinct values, group them into class intervals (also called bins). Choose interval widths that give 5–10 classes for clear comparison.
For marks 30–98, intervals of width 10 give: 30–40, 40–50, …, 90–100. Each value goes into the interval whose lower bound it equals or exceeds (and whose upper bound it's strictly below, by convention). 40 goes into 40–50, not 30–40.
For marks 30–98, intervals of width 10 give: 30–40, 40–50, …, 90–100. Each value goes into the interval whose lower bound it equals or exceeds (and whose upper bound it's strictly below, by convention). 40 goes into 40–50, not 30–40.
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