beginarray - c - c - Wline Class Marks - Frequency 1 Wline 30 - 211Wline 40 - 5 1Wline 50 - 1411Wline60 - 21 1hline70 - 23 1Wline80 - 811Wline90 - 711Wline100 - 111Wline e n d a r r a y Cumulative frequency for the class interval 85-95 is -A- Class sizeB- Class intervalC- All of theseD- Class width

The correct option is D Class width The frequecy distribution table is as follows: [ Class Interval amp; Frequency amp; C.F.; 25 35 amp; ...

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Byju's Answer

Standard X

Mathematics

Class Interval

beginarray | ...

Question

$\begin{matrix} Class Marks & Frequency 30 & 2 40 & 5 50 & 14 60 & 21 70 & 23 80 & 8 90 & 7 100 & 1 \end{matrix}$

Cumulative frequency for the class interval 85-95 is ?

Class size

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Class width

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Class interval

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All of these

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Solution

The correct option is B
Class width

The frequecy distribution table is as follows:

$\begin{matrix} Class Interval & Frequency & C.F. 25 - 35 & 2 & 2 35 - 45 & 5 & 7 45 - 55 & 14 & 21 55 - 65 & 21 & 42 65 - 75 & 23 & 65 75 - 85 & 8 & 73 85 - 95 & 7 & 80 95 - 105 & 1 & 81 \end{matrix}$

Cumulative frequency for the class interval 85-95 is 80.

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Class MarksFrequency3024055014602170238089071001 Cumulative frequency for the class interval 85-95 is ?

The correct option is B Class width The frequecy distribution table is as follows: Class IntervalFrequencyC.F.25−352235−455745−55142155−65214265−75236575−8587385−9578095−105181 Cumulative frequency for the class interval 85-95 is 80.

$\begin{matrix} Class Marks & Frequency 30 & 2 40 & 5 50 & 14 60 & 21 70 & 23 80 & 8 90 & 7 100 & 1 \end{matrix}$

Cumulative frequency for the class interval 85-95 is ?