A factory produces bulbs. The probability that one bulb is defective is `1/(50)` and they are packed in boxes of 10. From a single box, find the probability that (i) none of the bulbs is defective (ii) exactly tow bulbs are defective (iii)more than 8 bulbs work properly.

Answer

(i) `((49)/(50))^(10) (ii) 45 xx ((1)/(50))^(10) xx (49)^(8) (iii) (59 (49)^(9))/((50)^(10))`