Question

The probability that at least a person will hit a target in shooting practice is $0.3$. If he shoots $10$ times, the probability that he hits the target is

• A. $1$
• B. $1-{\left(0.7\right)}^{10}$
• C. ${\left(0.7\right)}^{10}$
• D. ${\left(0.3\right)}^{10}$

Answer 1

Answer: (B)

$1-{\left(0.7\right)}^{10}$

Required probability $=1-$ Probability, that he does not hit the target in any trial
$=1-{\left(0.7\right)}^{10}$