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Byju's Answer
Standard VIII
Mathematics
Frequency Table of Ungrouped Data
The given his...
Question

The given histogram represents marks of the students in mathematics.

What percentage of students scored more than or equal to 40 marks and less than 70 marks?

A
24%
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B
32.88%
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C
33%
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D
75.34%
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Solution

The correct option is B 32.88%

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Q.

The histogram below represents the Mathematics marks of the students.

Find the total number of students with total marks more than or equal to 40 and less than 70.


Q.
There are 68 students of 9th standard from model Highschool, Nandpur. They have scored following marks out of 80, in written exam of mathematics.

70, 50, 60, 66, 45, 46, 38, 30, 40, 47, 56, 68, 80, 79, 39, 43, 57, 61, 51, 32, 42, 43, 75, 43, 36, 37, 61, 71, 32, 40, 45, 32, 36, 42, 43, 55, 56, 62, 66, 72, 73, 78, 36, 46, 47, 52, 68, 78, 80, 49, 59, 69, 65, 35, 46, 56, 57, 60, 36, 37, 45, 42, 70, 37, 45, 66, 56, 47

By taking classes 30-40, 40-50, .... prepare the less than type cumulative frequency table
Using the table, answer the following questions :
(i) How many students, have scored marks less than 80 ?
(ii) How many students have scored marks less than 40 ?
(iii) How many students have scored marks less than 60 ?
Q.
By using data in example (6), and taking classes 30-40, 40-50... prepare equal to or more than type cumulative frequency table and answer the following questions based on it.
(i) How many students have scored marks 70 or more than 70 ?
(ii) How many students have scored marks 30 or more than 30 ?
Q. In a group of students, 10% students scored marks less than 20, 20% students scored marks between 20 to 40, 35% students scored marks between 40 to 60 and 20% students scored marks between 60 to 80. Remaining 30 students scored marks between 80 to 100. Find the mode of marks.
Q.

How many students scored more than or equal to 30 out of 50 marks in a class.
MarksNumber of students0−10210−201220−302130−40840−505

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Frequency Table of Ungrouped Data
Standard VIII Mathematics
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