The marks achieved by students in a class is given below:

$\begin{matrix} Marks (more than) & Frequency 0 & 0 10 & 15 20 & 2 30 & 12 40 & 30 50 & 24 60 & 18 70 & 14 80 & 18 90 & 16 100 & 0 \end{matrix}$

The continuous grouped data with class interval 20 for the above table will be ___.

$\begin{matrix} M a r k s (m o r e t h a n) & F r e q u e n c y 0 - 20 & 15 20 - 40 & 14 40 - 60 & 54 60 - 80 & 3 80 - 100 & 34 \end{matrix}$

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$\begin{matrix} M a r k s & F r e q u e n c y 0 - 20 & 5 20 - 40 & 14 40 - 60 & 54 60 - 80 & 32 80 - 100 & 34 \end{matrix}$

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$\begin{matrix} M a r k s & F r e q u e n c y 0 - 20 & 15 20 - 40 & 14 40 - 60 & 54 60 - 80 & 32 80 - 100 & 34 \end{matrix}$

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$\begin{matrix} M a r k s (m o r e t h a n) & F r e q u e n c y 0 - 20 & 15 20 - 30 & 14 30 - 60 & 54 60 - 80 & 34 80 - 100 & 32 \end{matrix}$

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Solution

The correct option is C
$\begin{matrix} M a r k s & F r e q u e n c y 0 - 20 & 15 20 - 40 & 14 40 - 60 & 54 60 - 80 & 32 80 - 100 & 34 \end{matrix}$

The grouped data for the given table is:

$\begin{matrix} Marks & Frequency 0 - 20 & 15 20 - 40 & 14 40 - 60 & 54 60 - 80 & 32 80 - 100 & 34 \end{matrix}$

Here for the class 0-20 means the observations above or equal to 0 and below 20

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Similar questions

Q. The marks obtained by 100 students of a class in an examination are given below:

Marks	Number of students
0-5	2
5-10	5
10-15	6
15-20	8
20-25	10
25-30	25
30-35	20
35-40	18
40-45	4
45-50	2

Draw cumulative frequency curves by using (i) 'less than' series and (ii) 'more than' series
Hence, find the median.

Which of the following is the frequency distribution table for the following distributions?

$\begin{matrix} M a r k s (m o r e t h a n) & C u m u l a t i v e F r e q u e n c y 0 & 100 10 & 87 20 & 65 30 & 55 40 & 42 50 & 36 60 & 31 70 & 21 80 & 18 90 & 7 100 & 0 \end{matrix}$

Q. Calculate arithemtic eman from the foolowing data:

Marks	No. Students
More than 0	150
More than 10	140
More than 20	100
More than 30	80
More than 40	80
More than 50	70
More than 60	30
More than 70	14

Q. Find the mean from the following data:

Marks	No. of Students
Above 0	80
Above 10	77
Above 20	72
Above 30	65
Above 40	55
Above 50	43
Above 60	28
Above 70	16
Above 80	10
Above 90	8
Above 100	0

Make a frequency table from the following:

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The marks achieved by students in a class is given below: Marks (more than)Frequency00101520230124030502460187014801890161000 The continuous grouped data with class interval 20 for the above table will be ___.

The correct option is C MarksFrequency0−201520−401440−605460−803280−10034 The grouped data for the given table is: MarksFrequency0−201520−401440−605460−803280−10034 Here for the class 0-20 means the observations above or equal to 0 and below 20

The marks achieved by students in a class is given below:

$\begin{matrix} Marks (more than) & Frequency 0 & 0 10 & 15 20 & 2 30 & 12 40 & 30 50 & 24 60 & 18 70 & 14 80 & 18 90 & 16 100 & 0 \end{matrix}$

The continuous grouped data with class interval 20 for the above table will be ___.