Question

5 A fair die is thrown once. The probability of even composite number is (a) o (b) 1/3 (c) 3/4 (d) 1​

Answer 1

Answer:

b) 1/3

Step-by-step explanation:

no. of composite no.'s on a die = 2

total no. of no.'s on a die = 6

= 2/6 = 1/3 in lowest form

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Answer 2

Given: A fair die is thrown once.

To find: Probability of even composite number

Explanation: A fair dice has 6 faces. All 6 outcomes- 12,3,4,5 and 6 are possible.

A composite number is a number which has factors other than 1 and the number itself.

A prime number is a number whose only factors are 1 and the number itself.

Out of these 6, only 4 and 6 are composite numbers while other are prime numbers. Here, both 4 and 6 are even numbers.

Probability of getting even composite number

= Total even composite numbers/ Total numbers

= 2/6

= 1/3

Therefore, the probability of getting an even composite number when a dice is thrown once is option (b) 1/3.