Question 14 Given below is a cumulative frequency distribution showing the marks secured by 50 students of a classWlineMarks - Below 20 - Below 40 - Below 60 - Below 80 - Below 100 -WlineNumber of students - 17 - 22 - 29 - 37 - 50 1hline array Form the frequecy distribution table for the data-

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Standard X

Mathematics

Grouped Frequency Table

Question 14 G...

Question

Given below is a cumulative frequency distribution showing the marks secured by 50 students of a class
$\begin{matrix} M a r k s & B e l o w 20 & B e l o w 40 & B e l o w 60 & B e l o w 80 & B e l o w 100 N u m b e r o f s t u d e n t s & 17 & 22 & 29 & 37 & 50 \end{matrix}$
Form the frequency distribution table for the data.

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Solution

Here, we observe that, 17 students have scored marks below 20 i.e., it lies between class interval 0-20 and 22 students have scored marks below 40, so 22-17 = 5 students lies in the class interval 20-40 continuing in the same manner, we get the complete frequency distribution table for given data.
$\begin{matrix} M a r k s & N u m b e r o f s t u d e n t s 0 - 20 & 17 20 - 40 & 22 - 17 = 5 40 - 60 & 29 - 22 = 7 60 - 80 & 37 - 29 = 8 80 - 100 & 50 - 37 = 13 \end{matrix}$

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Q. Question 14
Given below is a cumulative frequency distribution showing the marks secured by 50 students of a class

\begin{matrix} M a r k s & B e l o w 20 & B e l o w 40 & B e l o w 60 & B e l o w 80 & B e l o w 100 N u m b e r o f s t u d e n t s & 17 & 22 & 29 & 37 & 50 \end{matrix}

Form the frequecy distribution table for the data.

Q. Question 10
The following table shows the cumulative frequency distribution of marks of 800 students in an examination.

\begin{matrix} M a r k s & N u m b e r o f s t u d e n t s B e l o w 10 & 10 B e l o w 20 & 50 B e l o w 30 & 130 B e l o w 40 & 270 B e l o w 50 & 440 B e l o w 60 & 570 B e l o w 70 & 670 B e l o w 80 & 740 B e l o w 90 & 780 B e l o w 100 & 800 \end{matrix}

Construct a frequency distribution table for the data above.

Given below is a cumulative frequency table:
$\begin{matrix} Marks & Number of students Below 10 & 17 Below 20 & 22 Below 30 & 29 Below 40 & 37 Below 50 & 50 Below 60 & 60 \end{matrix}$
Extaract a frequency table from the above.

Q. Question 10
The following table shows the cumulative frequency distribution of marks of 800 students in an examination.

\begin{matrix} M a r k s & N u m b e r o f s t u d e n t s B e l o w 10 & 10 B e l o w 20 & 50 B e l o w 30 & 130 B e l o w 40 & 270 B e l o w 50 & 440 B e l o w 60 & 570 B e l o w 70 & 670 B e l o w 80 & 740 B e l o w 90 & 780 B e l o w 100 & 800 \end{matrix}

Construct a frequency distribution table for the data above.

Q. Given below is a cumulative frequency table:

Marks	Number of students
Below 10	17
Below 20	22
Below 30	29
Below 40	37
Below 50	50
Below 60	60

Extract a frequency table from the above.

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Given below is a cumulative frequency distribution showing the marks secured by 50 students of a class MarksBelow 20Below 40Below 60Below 80Below 100Number of students1722293750 Form the frequency distribution table for the data.