Identifying a modal class Revision Card

AI generatedStatisticsKey Stage 3

Identifying a modal class.

The mode is the most frequent value; a modal class is the interval with the greatest class frequency.
If frequencies tie for the largest, there can be more than one mode or modal class.

Example 1

Identify the modal class using the greatest class frequency.

Given information

Class	Frequency
	3
	5
	7
	2

Largest frequency

Select the interval with the greatest frequency. This question asks for the class, not a precise value within it.

Modal class:

Example 2

Identify the modal class using the greatest class frequency.

Given information

Class	Frequency
	4
	5
	8
	2

Largest frequency

Select the interval with the greatest frequency. This question asks for the class, not a precise value within it.

Modal class:

Your turn

Question 1

Identify the modal class using the greatest class frequency.

Given information

Class	Frequency
	5
	5
	9
	2

Check answer

Largest frequency

Select the interval with the greatest frequency. This question asks for the class, not a precise value within it.

Modal class:

Question 2

Identify the modal class using the greatest class frequency.

Given information

Class	Frequency
	6
	5
	10
	2

Check answer

Largest frequency

Select the interval with the greatest frequency. This question asks for the class, not a precise value within it.

Modal class:

Question 3

Identify the modal class using the greatest class frequency.

Given information

Class	Frequency
	7
	5
	7
	2

Check answer

Largest frequency

Select the interval with the greatest frequency. This question asks for the class, not a precise value within it.

Modal classes:

Question 4

Identify the modal class using the greatest class frequency.

Given information

Class	Frequency
	3
	6
	8
	2

Check answer

Largest frequency

Select the interval with the greatest frequency. This question asks for the class, not a precise value within it.

Modal class:

Question 5

Identify the modal class using the greatest class frequency.

Given information

Class	Frequency
	4
	6
	9
	2

Check answer

Largest frequency

Select the interval with the greatest frequency. This question asks for the class, not a precise value within it.

Modal class: