Question:
When a missile is fired from a ship, the probability that it is intercepted is $\frac{1}{3}$ and the probability that the missile hits the target, given that it is not intercepted, is $\frac{3}{4}$. If three missiles are fired independently from the ship, then the probability that all three hit the target, is:
Correct Option: 1
Solution:
Probability of not getting intercepted $=\frac{2}{3}$
Probability of missile hitting target $=\frac{3}{4}$
$\therefore$ Probability that all 3 hit the target $=\left(\frac{2}{3} \times \frac{3}{4}\right)^{3}=\frac{1}{8}$
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