If the mean of the distribution Variate 6 7 1-9 9 10 Frequency 1 2 k 3 4is 3-6the value of k is equal

The correct option is A 30 Mean =1× 6+7× 2+1.9× k+9× 3+10× 4/1+2+k+3+4=3.6 #160; #160; #160; #160; ⇒87+1.9k/k+10=3.6/1 #160; ⇒ ...

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Introduction to Statistics

If the mean o...

Question

If the mean of the distribution
$\begin{matrix} V a r i a t e & 6 & 7 & 1.9 & 9 & 10 F r e q u e n c y & 1 & 2 & k & 3 & 4 \end{matrix}$
is $3.6$
the value of $k$ is equal

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Solution

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Similar questions

If the mean of the following frequency distribution is $7.2$ find value of $k$ .

$\begin{matrix} x & 2 & 4 & 6 & 8 & 10 & 12 f & 4 & 7 & 10 & 16 & k & 3 \end{matrix}$

11, 16, 6, 10, 13, 11, 13.

12

8

^{'} k^{'}

$x$	$2$	$4$	$6$	$8$	$10$	$12$
$f r e q u e n c y = f$	$4$	$7$	$10$	$16$	$k$	$3$

p

50

$x$	$10$	$30$	$50$	$70$	$90$
$y$	$17$	$5 p + 3$	$32$	$7 p - 11$	$19$

Class interval	$10 - 15$	$15 - 20$	$20 - 25$	$25 - 30$	$30 - 35$
Frequency	$8$	$11$	$6$	$13$	$12$

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