Mathematics

Given :

Marks obtainedNumber of students
Less than 2020
Less than 3030
Less than 4040

For the data, given above, the less than cumulative frequency for less than 40 is :

  1. 90

  2. 40

  3. 50

  4. 70

Statistics

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Answer

Given,

Table :

Marks obtainedNumber of students
0 - 2020
0 - 3030
0 - 4040

Converting table :

Marks obtainedNumber of students
0 - 2020
20 - 3010 (30 - 20)
30 - 4010 (40 - 30)

So, students scoring less than 40 marks :

20 + 10 + 10 = 40.

Hence, Option 2 is the correct option.

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