CUET Preparation Today
In a box containing 100 bulbs, 10 are defective. The probability that out of a sample of 5 bulbs none is defective, is: |
$\frac{1}{10}$ $\left(\frac{1}{2}\right)^5$ $\left(\frac{9}{10}\right)^5$ $\frac{9}{10}$ |
$\left(\frac{9}{10}\right)^5$ |
The correct answer is Option (3) → $\left(\frac{9}{10}\right)^5$ |
