Question

When a unbiased die is thrown once, the probability of getting a composite number is

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Answer 1

Answer.

S= {4,6}

n(S) =2

Answer 2

SOLUTION

TO DETERMINE

When a unbiased die is thrown once, the probability of getting a composite number

EVALUATION

Here a dice is thrown once

So the possible outcomes = { 1, 2, 3, 4 ,5 ,6 }

So the total number of possible outcomes = 6

Let A be the event that of getting a composite number

Since 4 & 6 are the only composite numbers in 1, 2, 3, 4 ,5 ,6

So the possible outcomes for the event A is = { 4 ,6 }

So the total number of possible outcomes for the event A is 2

Hence the required probability

= P(A)

$\displaystyle \sf{ = \frac{2}{6} }$

$\displaystyle \sf{ = \frac{1}{3} }$

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