Question

SuyucSUUS.
A box of 600 electric bulbs contains 12 defective bulbs. One bulb is taken
ut at rand
is box. What is the probability that it is a non-defective
bulb?
plz answer my questions ​

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