Answer 1

In throwing a dice, total possible outcomes= {1,2,,3,4,5,6} 

n(s)=6 

On a dice, numbers greater than or equal to ={4,5,6} 

n(E)=3 

Probability of getting a number greater than or equal to 4= 

`(n(E))/(n(s))=3/6=1/2`