A lot of 20 bulbs contain 4 defective ones One bulb is drawn at random from the lot What is the prob...

Question

A lot of 20 bulbs contain 4 defective ones One bulb is drawn at random from the lot What is the probability that this bulb is defective

Accepted Answer

Numbers of defective bulbs 4 The total numbers of bulbs 20 PE Number of favourable outcomes Total number of outcomes Probability of getting a defective bulb P defective bulb 420

NCERT Solutions Class 10 Mathematics Solutions for Probability - Exercise 15.1 in Chapter 15 - Probability