8. An unbiased cubic die is thrown. Find the probability of getting (iii) a number divisible by $2$, (iv) a number less than $4$.

(iii)

The probability that getting a number divisible by $2$,

The number divisible by $2$ in the die $=2,4,6$

Now, the number of favorable outcomes to the event getting a number divisible by $2=3$

Thus,

P(getting a number divisible by $2$) = Favorable outcomes/Total number of outcomes

$=3/6$

$=1/2$

(iv)

The probability that getting a number less than $4$,

The number less than 4 in the die $=1,2,3$

Now, the number of favorable outcomes to the event getting a number less than $4=3$

Thus,

P(getting a number divisible by $2$) = Favorable outcomes/Total number of outcomes

$=3/6$

$=1/2$