Question

A person can kill a bird with probability $\frac{3}{4}$.he tries $5$ times . what is the probability that he may not kill the bird-

• A. $\frac{243}{1024}$
• B. $\frac{781}{1024}$
• C. $\frac{1}{1024}$
• D. $\frac{1023}{1024}$

Answer 1

The correct option is C $\frac{1}{1024}$

$Probabilityofnothitting=1-3/4=1/4Probabilityofnothittingin5trials={5_C}_5{\left(1/4\right)}^5=\frac{1}{1024}$