an urn contains 5 red and 2 black balls. two balls are randomly drawn. let X represents the number of black balls. what are the possible values of X? Is X a random variable?if yes find the mean and variance of X
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No of red balls=5
No of black balls=2
Total balls=7
=2/7 is the probability of getting black balls
No of black balls=2
Total balls=7
=2/7 is the probability of getting black balls
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2/7 is answerh g ghyety
Diviyanshi:
nyc answer
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me
its diviyanshi
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