Question

8. A die is thrown , find the probability of following events: (i) A prime number will appear,
(ii) A number greater than 3 will appear.​

Answer 1

Step-by-step explanation:

Sample space when one die is thrown

S={1,2,3,4,5,6.}. n(s)=6

Let A be the event to get a prime no on upper face, A={2,3,5.}. n(A)= 3

Therefore probability of event A is

P(A) = n(A)/n(S). 3/6 = 1/2

Probability of event A is = 1/2.

let B be the event that the no is greater than 3.

B={4,5,6}. n(B)=3.

Probability of event B is

P(B)= n(B)/n(S). 3/6 = 1/2

Probability of event B is =1/2