50 psychology students took a standardized test. The scores are summarized in the GFDT below.



      Scores         Frequency   

220 - 239

6

240 - 259

9

260 - 279

6

280 - 299

12

300 - 319

17


You would like to build a relative frequency distribution for this data set to easily compare it to another class of students.

What is the relative fequency for the third class, 260 - 279?

Enter answer as a percent (but do not include the percent symbol).

relative frequency = 

To calculate the relative frequency for the third class (260 - 279), you need to divide the frequency of that class by the total number of students, and then multiply by 100 to express it as a percentage.

The frequency for the 260 - 279 class is 6, and the total number of students is 50.

\[
\text{Relative frequency} = \left( \frac{\text{Frequency of class}}{\text{Total frequency}} \right) \times 100
\]

\[
\text{Relative frequency} = \left( \frac{6}{50} \right) \times 100 = 12
\]

So, the relative frequency for the 260 - 279 class is **12**.

Would you like further details on this, or have any additional questions?

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Here are 5 related questions:
1. How do you calculate relative frequency for the entire data set?
2. What is the cumulative frequency for all the classes up to 260 - 279?
3. How can relative frequency help in comparing two data sets?
4. Can you build a cumulative relative frequency distribution from this data?
5. What is the relative frequency for the highest class (300 - 319)?

**Tip:** When working with frequency distributions, relative frequency is helpful for comparing different sets of data without being affected by the overall sample size.

50 psychology students took a standardized test. The scores are summarized in the GFDT below.

Scores     Frequency
220 - 239    6
240 - 259    9
260 - 279    6
280 - 299    12
300 - 319    17

You would like to build a relative frequency distribution for this data set to easily compare it to another class of students.

What is the relative frequency for the third class, 260 - 279?

Enter answer as a percent (but do not include the percent symbol).

relative frequency =

Learn how to calculate the relative frequency for the class 260 - 279 in a frequency distribution of test scores for 50 psychology students. This example covers the concept of relative frequency and how it helps compare data sets. Suitable for high school students in Grades 10-12.

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