How To Make a Relative Frequency Distribution Table

The video provides a step-by-step explanation on how to construct a relative frequency distribution table using a sample dataset.

Summary

  • The presenter lists a dataset and explains the process of creating a frequency table by tallying the occurrences of each number.
  • The total frequency is calculated by summing the individual frequencies, which is then used to determine the relative frequencies.
  • Relative frequencies are obtained by dividing the frequency of each value by the total frequency, and the results are added to the table.
  • The presenter verifies the correctness of the relative frequency distribution by ensuring the sum of all relative frequencies equals 1.
  • Viewers are encouraged to subscribe, turn on notifications, and watch a follow-up video on cumulative relative frequency.

Chapter 1

Introduction to Relative Frequency Distribution

0:01 - 35 sec

The presenter introduces the concept of a relative frequency distribution table and begins listing a dataset.

The presenter introduces the concept of a relative frequency distribution table and begins listing a dataset.

  • The video begins with an intention to explain how to construct a relative frequency distribution table.
  • The presenter starts listing a dataset with numbers ranging from 2 to 8.

Chapter 2

Creating a Frequency Table

0:39 - 1 min, 32 sec

The first step in creating the relative frequency table is to tally the occurrences of each value in the dataset.

The first step in creating the relative frequency table is to tally the occurrences of each value in the dataset.

  • A frequency table is created with columns for value (V), frequency (F), and relative frequency (RF).
  • Starting with the lowest value, the presenter counts the frequency of each number in the dataset.
  • Frequencies for numbers 2 through 8 are determined and recorded in the frequency table.

Chapter 3

Calculating Total Frequency

2:17 - 15 sec

The presenter sums the frequencies of all values to establish the total frequency required to calculate relative frequencies.

The presenter sums the frequencies of all values to establish the total frequency required to calculate relative frequencies.

  • The sum of the frequency column is calculated to be 20.
  • Total frequency is crucial for determining the relative frequency of each value.

Chapter 4

Determining Relative Frequencies

2:32 - 1 min, 47 sec

Relative frequencies for each value are calculated and the presenter demonstrates verifying the accuracy of the table.

Relative frequencies for each value are calculated and the presenter demonstrates verifying the accuracy of the table.

  • Relative frequency is calculated by dividing the frequency of each value by the total frequency of 20.
  • Each relative frequency is written as a decimal, such as 0.30 for a frequency of 6, and 0.15 for a frequency of 3.
  • The presenter emphasizes the importance of the sum of all relative frequencies equalling 1 to ensure accuracy.

Chapter 5

Closing Remarks and Promotions

4:19 - 48 sec

The video concludes with a summary of the process, a call to subscribe and a promotion for a related video.

The video concludes with a summary of the process, a call to subscribe and a promotion for a related video.

  • The process of constructing the relative frequency table is summarized.
  • The audience is encouraged to subscribe and activate notifications.
  • A follow-up video on cumulative relative frequency is promoted.