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Bar Graph, Histogram and Frequency Polygon — MATHS STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9MATHSBar Graph, Histogram and Frequency Polygon5 Marks
Question
Draw a histogram to represent the following information:
Class interval
5-10
10-15
15-25
25-45
45-75
Frequency
6
12
10
8
18
✓

Answer

Minimum class size = 10 - 5 = 5 Adjusted frequency of a class $=\frac{\text{Minimum class size}}{\text{Class size}}\times\text{Frequency of the class}$
class Interval Frequency Adjusted Frequency
5-10 6 $\frac{5}{5}\times6=6$
10-15 15 $\frac{5}{5}\times12=12$
15-25 10 $\frac{5}{10}\times10=5$
25-45 8 $\frac{5}{20}\times8=2$
45-75 18 $\frac{5}{30}\times18=3$

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