The probability of obtaining an even prime number on each dice when a pair of dice is rolled is
(i) 0
(ii) $\cfrac{1}{3}$
(iii) $\cfrac{1}{{12}}$
(iv) $\cfrac{1}{{36}}$
The probability of obtaining an even prime number on each dice when a pair of dice is rolled is
(i) 0
(ii) $\cfrac{1}{3}$
(iii) $\cfrac{1}{{12}}$
(iv) $\cfrac{1}{{36}}$
Official Solution
Option D is correct
When a pair ofdice is rolled once,
the sample space contains $6 \times 6 = 36$ equally
likely simple events
$\therefore$ $S = {\left\{ {\begin{array}{cccccccccccccccccccc}{(1,1)}& \ldots &{(1,6)}\\ \vdots & \ldots & \vdots \\{(6,1)}& \ldots &{(6,6)}\end{array}} \right\}_{6 \times 6 = 36}}$
Let $E$ be the event that even prime number comes on each dice,
then sample points for $E$
is {(2,2)}
$\therefore$ Required probability $P(E) = \cfrac{1}{{36}}$
( is the only favourable outcome)
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