in the cumulative frequency distribution table given below the number of families having income range rs. 20000 and rs. 25000 is
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Hence, the number of families having an income range of Rs. 20,000 – Rs. 25,000 is 13.
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The number of families having income range is ₹ 20000 and ₹ 25000 is 13.
Cumulative frequency
It refers to the frequency between occurance values and refrence values.
To calculate the number of families having income range is ₹ 20000 and ₹ 25000
we have to minus the 2 frequency with each other of the class interval ₹ 20000 and ₹ 25000 .
The frequency of the class interval ₹ 20000 is 50 and
The frequency of the class interval ₹ 25000 is 37
Hence
50 - 37
= 13
Therefore
The number of families having income range is ₹ 20000 and ₹ 25000 is 13.
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