In a box containing 100 bulbs, 10 are defective. The probability that

1.	In a box containing 100 bulbs, 10 are defective. The probability that out of a sample of 5 bulbs, none is defective is (a) 10−1 (b) (12)5 (c) (910)5 (d) 910
Answer» In a box containing 100 bulbs, 10 are defective. The probability that out of a sample of 5 bulbs, none is defective is (a) $10^{- 1}$ (b) ${(\frac{1}{2})}^{5}$ (c) ${(\frac{9}{10})}^{5}$ (d) $\frac{9}{10}$

In a box containing 100 bulbs, 10 are defective. The probability that out of a sample of 5 bulbs, none is defective is (a) 10−1 (b) (12)5 (c) (910)5 (d) 910

Answer»

In a box containing 100 bulbs, 10 are defective. The probability that out of a sample of 5 bulbs, none is defective is

(a) $10^{- 1}$

(b) ${(\frac{1}{2})}^{5}$
(c) ${(\frac{9}{10})}^{5}$
(d) $\frac{9}{10}$