# Frequencies 81136

In grouped data classes such as 10-15, 16-20, 21-25, 26-30 with the respective frequencies of each class as 3, 5, 4, 3, then the range (range of variation) is:

a. 15

b. 6

c. 20

d. 5

a. 15

b. 6

c. 20

d. 5

## Correct answer:

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