If the cumulative frequency for the class interval 50-60 is 92 - then find x begin array - Wline Class Interval-0-10-10-20-20-30-30-40-40-50-50-60Whline array

The correct option is C 26 The cumulative frequency table for the given distribution is [ Class Interval amp;Frequency amp;Cumulative Fre ...

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Standard X

Mathematics

Data

If the cumula...

Question

If the cumulative frequency for the class interval (50-60) is 92, then find x

$\begin{matrix} Class Interval & 0 - 10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 Frequency & 12 & 20 & x & 18 & 10 & 6 \end{matrix}$

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Solution

The correct option is D
26

The cumulative frequency table for the given distribution is

$\begin{matrix} Class Interval & Frequency & Cumulative Frequency 0 - 10 & 12 & 12 10 - 20 & 20 & 32 20 - 30 & x & (32 + x) 30 - 40 & 18 & (50 + x) 40 - 50 & 10 & (60 + x) 50 - 60 & 6 & (66 + x) \end{matrix}$

$∴ Cumulative frequency for class interval (50 - 60) is 92$

$\Rightarrow 66 + x = 92$

$\Rightarrow x = 92 - 66$

$\Rightarrow x = 26$

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Find the median class for the below distribution.
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Q. Find the mode of the following distribution.

(i)

Class-interval:	0−10	10−20	20−30	30−40	40−50	50−60	60−70	70−80
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(ii)

Class-interval:	10−15	15−20	20−25	25−30	30−35	35−40
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(iii)

Class-interval:	25−30	30−35	35−40	40−45	45−50	50−55
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(iv)

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Q. The class-width of the intervals in the given grouped frequency disribution table is:

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If the cumulative frequency for the class interval (50-60) is 92, then find x Class Interval0−1010−2020−3030−4040−5050−60Frequency 12 20 x 18 10 6

If the cumulative frequency for the class interval (50-60) is 92, then find x

$\begin{matrix} Class Interval & 0 - 10 & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 Frequency & 12 & 20 & x & 18 & 10 & 6 \end{matrix}$