Question

A company delivers a set of 12 wooden chairs to a certain school, out of which three are defective chairs. Five chairs are selected at random find the probability that, i. All five are good chairs ii. At most two chairs will found to be defective.

Answer 1

Answer:

good chairs - 5/9 bad chairs- 2/3

Step-by-step explanation:

Total number of good chairs = (12-3) =9

P(no of good chairs )= 5/9

Total number of bad chairs = 3

P (no of bad chairs) = 2/3

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Answer 2

Answer:

1) 5/9 2) 2/3

Step-by-step explanation:

Total chairs = 9

1) Good chairs to be found = 5

Then, probability of getting good chairs=5/9

2) Defective chairs to be found= 2

Total defective chairs = 3

Then, probability of getting defective chairs=2/3