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Statistics and Probability — MATHS STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9MATHSStatistics and Probability1 Mark
Question
Write the correct answer in the following:
The width of five continuous classes in a frequency distribution is 5 and the lower class-limit of the lowest class is 10. The upper class-limit of the highest class is:
  1. 15
  2. 25
  3. 35
  4. 40
✓

Answer

  1. 35
Solution:
Sol. Width of each of the five continuous classes in a frequency distribution is 5.
Lower class limit of the lowest class = 10
Upper class limit of the lowest class is 10 + 5 = 15
So, the five continuous classes are
10 - 15, 15 - 20, 20 - 25, 25 - 30, 30 - 35
Hence, the upper-class limit of the height class is 35.

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