If the sum of all the frequencies is 18 - then the value of y is-Whine Variable x - 1 - 2 - 3 - 485111 hinelend array A- 3B- 6C- 13D- 24

The correct option is B 6Here, n=∑ f_i=4+5+y+1+2=12+y Given: ∑ f_i=18 ∴ n=∑ f_i=12+y=18 ⇒ y=18 12=6. ...

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Standard IX

Mathematics

Frequency

If the sum of...

Question

If the sum of all the frequencies is 18, then the value of y is:
$\begin{matrix} V a r i a b l e (x) & 1 & 2 & 3 & 4 & 5 F r e q u e n c y & 4 & 5 & y & 1 & 2 \end{matrix}$

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Solution

The correct option is B 6
Here, $n = \sum f_{i} = 4 + 5 + y + 1 + 2 = 12 + y$
Given: $\sum f_{i} = 18$
$∴ n = \sum f_{i} = 12 + y = 18$
$\Rightarrow y = 18 - 12 = 6$ .

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Similar questions

If the sum of all the frequencies is 24, then the value of z is:
$\begin{matrix} V a r i a b l e (x) & 1 & 2 & 3 & 4 & 5 F r e q u e n c y & z & 5 & 6 & 1 & 2 \end{matrix}$

The mean of the above frequency distribution is 3.5, then the value of x is:
$\begin{matrix} V a r i a b l e & 1 & 2 & x & 4 & 5 F r e q u e n c y & 2 & 3 & 4 & 5 & 6 \end{matrix}$

Q. If the sum of all the frequencies is 18, then the value of y is:

\begin{matrix} V a r i a b l e (x) & 1 & 2 & 3 & 4 & 5 F r e q u e n c y & 4 & 5 & y & 1 & 2 \end{matrix}

Q. If the mean of the following distribution is 2.6, then the value of y is

Variable (x):	1	2	3	4	5
Frequency	4	5	y	1	2

(a) 3
(b) 8
(c) 13
(d) 24

If the sum of all the frequencies is 24, then the value of z is:
$\begin{matrix} V a r i a b l e (x) & 1 & 2 & 3 & 4 & 5 F r e q u e n c y & z & 5 & 6 & 1 & 2 \end{matrix}$

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If the sum of all the frequencies is 18, then the value of y is: Variable (x)12345Frequency45y12

The correct option is B 6Here, n=∑fi=4+5+y+1+2=12+y Given: ∑fi=18 ∴n=∑fi=12+y=18 ⇒y=18−12=6.

If the sum of all the frequencies is 18, then the value of y is:
$\begin{matrix} V a r i a b l e (x) & 1 & 2 & 3 & 4 & 5 F r e q u e n c y & 4 & 5 & y & 1 & 2 \end{matrix}$

The correct option is B 6
Here, $n = \sum f_{i} = 4 + 5 + y + 1 + 2 = 12 + y$
Given: $\sum f_{i} = 18$
$∴ n = \sum f_{i} = 12 + y = 18$
$\Rightarrow y = 18 - 12 = 6$ .