Question

a fair die is rolled. what is the probability of getting a prime number or a factor of 5?

Answer 1

Answer:

Favourable outcomes = 2, 3, 5

P( getting prime no. or factor of 5 ) = 3 / 6

= 1 / 2

Answer 2

The given question is a fair die is rolled.

we have find the probability of getting a prime number Or a factor of 5.

A die is rolled once, the sample space is n(s) =6.

The probability of getting the prime number is p(p) = n(p) /n(s).

The no of possible outcome for prime number is 1,2,3,5

Therefore, the probability is

$\frac{4}{6} = \frac{2}{3}$

The probability of getting a factor of 5 is p(f) =n(f) /n(s).

The factor of 5 is only 1 and 5 .

Therefore, the probability of getting the factor of 5 is

$\frac{2}{6} = \frac{1}{3}$

Hence, the final answer is obtained that factor of 5 is

$\frac{1}{3}$

probability of prime number is

$\frac{2}{3}$

# spj2

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