The probability of a bomb hitting a bridge is $1/2$ and two direct hits are needed to destroy it. The leastnumber of bombs required so that the probability of the bridge being destroyed is greater than 0.9 is
Options:
Answer:
A
Solution:
$P (X \geq 2) \geq 0.9 \times$ follows B.D with parameter $n, p = \frac{1}{2}$

Question

The probability of a bomb hitting a bridge is $1/2$ and two direct hits are needed to destroy it. The leastnumber of bombs required so that the probability of the bridge being destroyed is greater than 0.9 is

Options:

Answer:

A

Solution:

$P (X \geq 2) \geq 0.9 \times$ follows B.D with parameter $n, p = \frac{1}{2}$

TestHub · Accepted Answer

P ( X ≥ 2 ) ≥ 0.9 × follows B.D with parameter n , p = 2 1 ​

Mathematics - Probability Question with Solution | TestHub

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