CFA Level 1: Relative Frequency Calculation

Relative Frequency Calculation

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Question

A researcher has organized 310 observations into 9 classes. The frequency of the 50-75 frequency class is 34. The relative frequency of the class equals

________.

Answers

Explanations

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A. B. C. D.

C

relative frequency = class frequency/total # of observations

= 34/310 = 0.11

Remember that relative frequency is always a number between zero and one.

To find the relative frequency of a class, we need to divide the frequency of that class by the total number of observations. In this case, we are given that there are 310 observations.

The frequency of the 50-75 frequency class is given as 34. To find the relative frequency, we divide 34 by 310:

Relative frequency = Frequency of the class / Total number of observations Relative frequency = 34 / 310

Now, let's calculate the relative frequency:

Relative frequency = 0.10967741935483871

Rounding off to two decimal places, the relative frequency is approximately 0.11.

Therefore, the correct answer is option C: 0.11.