Question

It is known that a box of 600 electric bulbs contain 12 defective bulbs is taken at random from this bulb is taken at random from this box. what is the probability that is a non defective bulb

Answer 1

Out of 600 electric bulbs one bulb can be chosen in 600 ways

⇒Total number of outcomes = 600

Number of non-defective bulbs = 600 -12

= 588

⇒ Number of favourable outcomes = 588

P(Getting a non-defective bulb) = No. of favourable outcomes÷Total no. of outcomes

⇒ Probability = 588/600

Hence, the probability of getting a non-defective bulb = 0.98

Answer 2

Answer:

Step-by-step explanation: