Question

die is rolled once. What is the probability of rolling (i) 3 (ii) 7 (iii) an even number (iv) a prime number

Answer 1

Die is rolled once , total possibility is 6 ( 1 , 2 , 3 , 4 , 5 , 6 )

❥ Probability of rolling number 3 is 3/6 or 1/2 .

❥ Probability of rolling number 7 is 0/6 as there are only six numbers in a dice .

❥ Probability of rolling a prime number is 3/6 or 1/2 . ( 1 , 3 and 5 are the prime numbers )

Answer 2

Díє íѕ rσllєd σncє tσtαl pσѕѕíвílítч íѕ 6(1, 2, 3, 4, 5, 6)

Prσвαвílítч σf rσllíng thє díєѕ 3 íѕ 3/6 σr 1/2

Prσвαвílítч σf rσllíng numвєr íѕ 7 íѕ 0/6 αѕ thєrє αrє σnlч ѕíх numвєrѕ ín α dícє.

Prσвαвílítч σf rσllíng α prímє numвєr íѕ 3/6 σr 1/2 (1, 3 αnd 5)