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Explicate probability using discrete distribution

describe the probability distribution for the random variable x follows

X	f(x)
20	0.2
25	0.15
30	0.25
35	0.4

1) Is this probability distribution valid? describe

2) What is the probability that x = 30?

3) What is the probability that x is less than or equal to 25?

4) What is the probability that x is greater than 30?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M920308

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