Out of 10 persons working on a project, 4 are graduates. If 3 are selected, what is the probability that there is at least one graduate among them?
Created: 8 months ago | Updated: 2 months ago
Job Solution Uttara Bank Ltd প্রবেশনারি অফিসার - 17.09.2021 গণিত
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Non-graduate = 10-4  = 6

P(non-graduate) = 6C3/10C3 = 1/6

P(graduate) = 1-1/6 = 6-1/6 = 5/6

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