Question

if a die is thrown once what is the probability of getting a prime number . i have a doubt as in some places 2 is included as a prime number and in some places it is not

Answer 1

1/2
because prime no are 2,3 ,6

Answer 2

if a dice is thrown once
total possible outcomes ={1,2,3,4,5,6}
number of total possible outcomes = 6---(1)
favorable outcomes= getting a prime number = {2,3,5}
number of favorable outcomes = 3----(2)

p(getting prime) = (2)/(1)
= 3/6
=1/2