Choose the correct answer in each of the following: The mean of the numbers obtained on throwing a die having written 1 on three faces,

Q: Choose the correct answer in each of the following: The mean of the numbers obtained on throwing a die having written 1 on three faces, 2 on two faces and 5 on one face is

$\text{x}_i$ $\text{p}_i$ $\text{p}_i\text{x}_i$ $1$ $2$ $5$ $\frac{3}{6}$ $\frac{2}{6}$ $\frac{1}{6}$ $\frac{3}{6}$ $\frac{4}{6}$ $\frac{5}{6}$ $\sum\text{p}_i\text{x}_i=\frac{12}{6}=2$ Therefore, option (B) is correct.

M.C.Q (1 Marks)

GSEB - English Medium

Choose the correct answer in each of the following:
The mean of the numbers obtained on throwing a die having written 1 on three faces, 2 on two faces and 5 on one face is

A
1
B
2
C
5
D$\frac{8}{3}$

STD 12 Science
Maths
Probability
Exemplar

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$\text{x}_i$	$\text{p}_i$	$\text{p}_i\text{x}_i$
$1$ $2$ $5$	$\frac{3}{6}$ $\frac{2}{6}$ $\frac{1}{6}$	$\frac{3}{6}$ $\frac{4}{6}$ $\frac{5}{6}$
		$\sum\text{p}_i\text{x}_i=\frac{12}{6}=2$

$\text{X}$	$2$	$3$	$4$	$5$
$\text{P}(\text{X})$	$\frac{5}{\text{k}}$	$\frac{7}{\text{k}}$	$\frac{9}{\text{k}}$	$\frac{11}{\text{k}}$

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