What is the cumulative frequency of class interval 15 - 20?
As we learned
Cumulative frequency distribution -
The cumulative frequency of a value is its frequency plus the frequencies of all smaller values.
ex x f c.f
0 2 2
1 4 6
2 4 10
3 6 16
16
-
Since
we add all the previous frequencies.
Option 1)
Option 2)
Option 3)
Option 4)
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