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High School Mathematics
14.8 Greater Than Cumulative Frequency

The Greater than Type cumulative frequency:The cumulative frequency of a particular class and all the classes after that class is called the "greater than" type cumulative frequency.

The greater than cumulative frequencies are related to lower class boundaries and form a decreasing sequence. The marks of 30 students of a class, obtained in a test out of 75, are given below:
42, 21, 50, 37, 38, 42, 49, 52, 38, 53, 57, 47, 29, 59, 61, 33, 17,17, 39, 44, 42, 39, 14, 7, 27, 19, 54, 51.

On the basis of the given data a frequency table and a cumulative frequency "greater than" type of table with equal class interval would look like this.

Directions: Answer the questions based on the table above. Also write at least one example of your own.
Q 1: Which class interval has the frequency 3?
30 - 40
20 - 30
40 - 50
50 - 60

Q 2: In this type of frequency table, which class interval will show the maximum frequency?
Last class interval
First class interval

Q 3: Cumulative frequency table of the greater than type form a
increasing sequence
decreasing sequence

Q 4: How many class intervals have the same maximum frequency?

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