Math Problem Statement

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

Scores Frequency 200 - 219 6 220 - 239 8 240 - 259 9 260 - 279 7 280 - 299 20

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 first class, 200 - 219?

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

relative frequency = %

Solution

The relative frequency for the score range 200 - 219 is 12%.

Would you like more details or have any questions?

Here are some related questions to explore:

  1. What is the relative frequency for the 220 - 239 range?
  2. How can you verify the total of all relative frequencies?
  3. How would you visualize this relative frequency distribution?
  4. What does the relative frequency indicate in this context?
  5. How would you compare two relative frequency distributions?

Tip: Relative frequency helps you compare the proportion of different categories, even if the sample sizes differ.

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Math Problem Analysis

Mathematical Concepts

Statistics
Relative Frequency
Frequency Distribution

Formulas

Relative frequency = (Class frequency / Total frequency) * 100

Theorems

-

Suitable Grade Level

Grades 9-12

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