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in Mathematics by (6.2k points)

Five bad oranges are accidently mixed with 20 good ones. If four oranges are drawn one by one successively with replacement then find the probability distribution of number of bad oranges drawn. Hence, find the mean and variance of the distribution

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Total number of oranges = 25

number of good oranges = 20

number of bad oranges = 5

Probability of getting a bad orange,

P(B) = 5/25 =1/5

Now  p =1/5

q = 1-p = 4/5

Let X be the random variable of "Number of bad oranges".

.'. Probability distribution is

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