The Total solution for NCERT class 6-12
Theprobability of a man hitting a target is 0.25. He shoots 7 times. What is theprobability of his hitting at least twice?
Answer - 51 : -
Afactory produces bulbs. The probability that one bulb is defective is and they are packedin boxes of 10. From a single box, find the probability that
i. none of the bulbs is defective.
ii. exactly two bulls are defective.
iii. more than 8 bulbs work properly.
Answer - 52 : -