Question
Download Solution PDFWhat is the frequency density of the class 20 - 40?
|
Class |
0-10 |
10-20 |
20-40 |
40-60 |
|
Frequency |
12 |
16 |
14 |
8 |
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven
Frequency density is actually the frequency per unit width.
Frequency of class interval 20 - 40 = 14
Formula used
\(Frequency ~density = \frac{Frequency}{(upper ~limit – lower~ limit) } \)
Calculation
\(⇒\frac{14}{40-20}\)
\(⇒\frac{14}{20}=0.7\)
∴ Frequency density is 0.7
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