Question

In constructing a frequency distribution, as the number of classes are decreased, the class width

• A. Decreases
• B. Increases
• C. Increases or decreases depending on the data values
• D. Remains unchanged

Answer 1

The correct option is B Increases

Class width = $\frac{(Highestscore-Lowestscore)}{No.ofclasses}$
Hence as the number of classes of a frequency distribution decreases, the class width increases.