Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 11
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# A Dice is Thrown. Find the Probability of Getting:(Ii) 2 Or 4 - Mathematics

A dice is thrown. Find the probability of getting:

2 or 4

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#### Solution

The sample space of the given experiment is given by
S = {1, 2, 3, 4, 5, 6}
∴ (S) = 6

Let B be the event of occurrence of the number 2 or 4.
Then B = {2,4}
i.e. n (B) = 2

$\therefore P\left( B \right) = \frac{\text{ Number of outcomes favourable to B} }{\text{ Total number of possible outcomes }} = \frac{n\left( B \right)}{n\left( S \right)} = \frac{2}{6} = \frac{1}{3}$

Concept: Probability - Probability of 'Not', 'And' and 'Or' Events
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#### APPEARS IN

RD Sharma Class 11 Mathematics Textbook
Chapter 33 Probability
Exercise 33.3 | Q 1.2 | Page 45
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