- Range Frequency Cumulative frequency- 0-10 5 b- 10-20 a 8- 20-30 2 c- 30-40 6 d- -Fill in the missing slots and find the value of a-b-c-d-

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Byju's Answer

Standard X

Mathematics

Cumulative Frequency Distribution of Less Than Type

[ Rang...

Question

$\begin{matrix} R a n g e & F r e q u e n c y & C u m u l a t i v e f r e q u e n c y 0 - 10 & 5 & (b) 10 - 20 & (a) & 8 20 - 30 & 2 & (c) 30 - 40 & 6 & (d) \end{matrix}$

Fill in the missing slots and find the value of $(a) + (b) + (c) + (d)$ .

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Solution

The correct option is A
34

$\begin{matrix} R a n g e & F r e q u e n c y & C u m u l a t i v e f r e q u e n c y 0 - 10 & 5 & (b) = 5 10 - 20 & (a) = 8 - 5 = 3 & 8 20 - 30 & 2 & (c) = 8 + 2 = 10 30 - 40 & 6 & (d) = 10 + 6 = 16 \end{matrix}$

So a + b + c + d = 3 + 5 + 10 + 16 = 34.

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$\begin{matrix} x_{i} & f_{i} & f_{i} x_{i} 4 & 10 & . . . . . . . . 8 & 11 & . . . . . . . . 12 & 9 & . . . . . . . . . 16 & 13 & . . . . . . . . . \sum f_{i} x_{i} = . . . . . . . . . . \end{matrix}$

Find the value of $\sum f_{i} x_{i}$ .

$\begin{matrix} R a n g e & F r e q u e n c y & C u m u l a t i v e f r e q u e n c y 0 - 10 & 5 & (b) 10 - 20 & (a) & 8 20 - 30 & 2 & (c) 30 - 40 & 6 & (d) \end{matrix}$

Fill in the missing slots and find the value of $(a) + (b) + (c) + (d)$ .

Q. Calculate missing frequency, if mean of the distribution is 28.

C.I	0-10	10-20	20-30	30-40	40-50	50-60
Frequency	12	?	27	20	17	6

$\begin{matrix} N u m b e r o f C u p s & F r e q u e n c y & C u m u l a t i v e F r e q u e n c y 2 & 1 & 1 3 & 3 & 4 4 & - - - - & 9 5 & 7 & 16 6 & 4 & 20 \end{matrix}$

For the above given frequency table, find the missing frequency.

Q. Consider the following frequency distribution

Class	0-10	10-20	20-30	30-40	40-50	50-60
Frequency	3	9	15	30	18	5

The modal class is
(a) 10-20
(b) 20-30
(c) 30-40
(d) 50-60

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Range Frequency Cumulative frequency 0−105(b)10−20(a)820−302(c)30−406(d) Fill in the missing slots and find the value of (a)+(b)+(c)+(d).

The correct option is A 34 Range Frequency Cumulative frequency 0−105(b)=510−20(a)=8−5=3820−302(c)=8+2=1030−406(d)=10+6=16 So a + b + c + d = 3 + 5 + 10 + 16 = 34.

$\begin{matrix} R a n g e & F r e q u e n c y & C u m u l a t i v e f r e q u e n c y 0 - 10 & 5 & (b) 10 - 20 & (a) & 8 20 - 30 & 2 & (c) 30 - 40 & 6 & (d) \end{matrix}$

Fill in the missing slots and find the value of $(a) + (b) + (c) + (d)$ .

The correct option is A
34

$\begin{matrix} R a n g e & F r e q u e n c y & C u m u l a t i v e f r e q u e n c y 0 - 10 & 5 & (b) = 5 10 - 20 & (a) = 8 - 5 = 3 & 8 20 - 30 & 2 & (c) = 8 + 2 = 10 30 - 40 & 6 & (d) = 10 + 6 = 16 \end{matrix}$

So a + b + c + d = 3 + 5 + 10 + 16 = 34.