beginarray - c-c- Whine Marks - Cumulative Frequency0 - 100 I10 - 871120 - 651130 - 551140 - 42 150 - 36 160 - 311170 - 211180 - 18 190 - 7 1100 - 0 Wlinlinelend array Find the frequency for the clas interval 80-90-A- 22B- 32C- 6D- 11

The correct option is D 11 [ Marks amp; c.f amp; frequency; 0 10 amp; 100 amp; 100 87=13; 10 20 ...

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Byju's Answer

Standard X

Mathematics

Frequency

beginarray | ...

Question

$\begin{matrix} Marks & Cumulative Frequency 0 & 100 10 & 87 20 & 65 30 & 55 40 & 42 50 & 36 60 & 31 70 & 21 80 & 18 90 & 7 100 & 0 \end{matrix}$

Find the frequency for the clas interval 80 - 90.

True

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False

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Solution

The correct option is C
11

$\begin{matrix} Marks & c.f & frequency 0 - 10 & 100 & 100 - 87 = 13 10 - 20 & 87 & 87 - 65 = 22 20 - 30 & 65 & 65 - 55 = 10 30 - 40 & 55 & 55 - 42 = 13 40 - 50 & 42 & 42 - 36 = 6 50 - 60 & 36 & 36 - 31 = 5 60 - 70 & 31 & 31 - 21 = 10 70 - 80 & 21 & 21 - 18 = 3 80 - 90 & 18 & 18 - 7 = 11 90 - 100 & 7 & 7 \end{matrix}$

From the table the frequency for the clas interval 80 - 90 is 11

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Similar questions

$\begin{matrix} Marks & Cumulative~Frequency 0 & 0 10 & 7 20 & 28 30 & 54 40 & 71 50 & 84 60 & 105 70 & 147 80 & 180 90 & 196 100 & 200 \end{matrix}$

Find the frequency for the class interval 70 - 80.

Find the cumulative frequency for the class interval 65-70 $\begin{matrix} Class interval & Frequency 50 - 55 & 5 55 - 60 & 20 60 - 65 & 10 65 - 70 & 10 70 - 75 & 9 75 - 80 & 6 80 - 85 & 6 85 - 90 & 8 \end{matrix}$

Find the median of the following data.

$\begin{matrix} C l a s s i n t e r v a l & 0 - 20 & 20 - 40 & 40 - 60 & 60 - 80 & 80 - 100 F r e q u e n c y & 5 & 11 & 12 & 13 & 9 \end{matrix}$

Find the median of the following data.

$\begin{matrix} C l a s s i n t e r v a l & 0 - 20 & 20 - 40 & 40 - 60 & 60 - 80 & 80 - 100 F r e q u e n c y & 5 & 11 & 12 & 13 & 9 \end{matrix}$

The following table shows the class mark and frequency. Convert the table in the class interval
$\begin{matrix} Class Mark & Frequency 55 & 8 65 & 6 75 & 18 85 & 25 95 & 12 \end{matrix}$

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MarksCumulative Frequency0100108720653055404250366031702180189071000 Find the frequency for the clas interval 80 - 90.

The correct option is C 11 Marksc.f frequency0−10100100−87=1310−208787−65=2220−306565−55=1030−405555−42=1340−504242−36=650−603636−31=560−703131−21=1070−802121−18=380−901818−7=1190−10077 From the table the frequency for the clas interval 80 - 90 is 11

$\begin{matrix} Marks & Cumulative Frequency 0 & 100 10 & 87 20 & 65 30 & 55 40 & 42 50 & 36 60 & 31 70 & 21 80 & 18 90 & 7 100 & 0 \end{matrix}$

Find the frequency for the clas interval 80 - 90.