Advertisements
Advertisements
प्रश्न
4 defective pens are accidentally mixed with 16 good ones. It is not possible to just look at a pen and tell whether or not it is defective. One pen is drawn at random from the lot. What is the probability that the pen is defective?
बेरीज
Advertisements
उत्तर
Total number of pens = 4 + 16 = 20
Total possible outcomes = 20
Number of defective pens = 4
P(defective pen) = `4/20 = 1/5`
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 25: Probability - Exercise 25 (C) [पृष्ठ ३९५]
