Relative Frequency in Probability

The relative frequency in probability represents the share of a certain object in the total number of objects in the set in question.

Let's demonstrate this with an example

There are 35 35 students in a university class.

At the end of the semester an exam was conducted and the results are shown in the following table:

We are asked to complete the last line of the table representing the relative frequency of each grade.

We do this by dividing the frequency of the grade (number of students who received that grade) by the total number of students (in our case 35 35 ).

For the grade 40 40 : the relative frequency is 135\frac{1}{35}

For the grade 50 50 : the relative frequency is 435\frac{4}{35}

For the score 60 60 : the relative frequency is 1235\frac{12}{35}

For the score 7070 : the relative frequency is 1335\frac{13}{35}

For the grade 80 80 : the relative frequency is 235\frac{2}{35}

For the grade 90 90 : the relative frequency is 235\frac{2}{35}

For the grade 100 100 : the relative frequency is 135\frac{1}{35}

If you are interested in this article you may also be interested in the following articles:

  • Statistics
  • Data collection and organization - statistical research
  • Statistical Frequency
  • Relative Frequency in Statistics
  • Key Metrics in Statistics
  • Probability
  • Possible outcomes and their probability
  • Representing probability on the number line
  • Frequency probability
  • Properties of probability

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