Tag: statistics

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Multiple choice statistics data handling analysis bar charts frequency table and diagrams bar diagram

In case of frequency distribution with classes of unequal widths, the heights of bar of a histogram are proportional to _____________.

  1. frequency

  2. class intervals

  3. frequency densities

  4. frequencies in percentage
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When class intervals are unequal, the area of the histogram bars must be proportional to the frequency. Therefore, the height of the bar is calculated as frequency divided by class width, which is the frequency density.