Consider the marks obtained by 20 students out of 100 marks in a science quiz- 30 40 50 -35 40 - 55 60 40 30 60 75 - 75 60 30 40 60 55 35 50 40 30 -What is the frequency of 40 marks-

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Byju's Answer

Standard VIII

Mathematics

Frequency Distribution of Ungrouped Data

Consider the ...

Question

Consider the marks obtained by 20 students out of 100 marks in a science quiz

30 40 50 35 55 60 40 30 60 75

75 60 30 40 60 55 35 50 40 30

What is the frequency of 40 marks?

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Solution

The correct option is C
4

By frequency of 40 marks we mean the number of students who secured 40 marks in the class. This can be calculated simply by observing the table. By observing the table we find that 4 students in the class have secured 40 marks in the quiz and so the frequency of 40 marks is 4.

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Q. The marks obtained by 25 students in a science test are given below. (Marks out of 30)

\begin{matrix} 8 & 7 & 12 & 17 & 20 & 11 & 10 & 10 & 16 \\ 21 & 28 & 25 & 13 & 9 & 27 & 18 & 20 & 19 \\ 7 & 29 & 16 & 15 & 20 & 22 & 27 \end{matrix}

Using this data, answer the following questions:

(1) What is the lowest score obtained?
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Consider the marks obtained by 20 students out of 100 marks in a science quiz 30 40 50 35 55 60 40 30 60 75 75 60 30 40 60 55 35 50 40 30 What is the frequency of 40 marks?

Consider the marks obtained by 20 students out of 100 marks in a science quiz

30 40 50 35 55 60 40 30 60 75

75 60 30 40 60 55 35 50 40 30

What is the frequency of 40 marks?