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Statistics — MATHS STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9MATHSStatistics1 Mark
Question
To draw a histogram to represent the following frequency distribution:
Class interval
5-10
10-15
15-25
25-45
45-75
Frequency
6
12
10
8
15
The adjusted frequency for the class 25-45 is:
✓

Answer

  1. 2
Solution:
Adjusted Frequency $=\Big(\frac{\text{Frequncey of the class }}{\text{widthof the class}}\Big)\times5$
Therefore adjusted frequencey of $25-45=\frac{8}{20}\times5=2$

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