(See Solution) The probability distribution for the random variable x follows. x f(x) 20 0.2 25 0.15 30 0.25 35 0.4 Is this probability distribution valid?

Question: The probability distribution for the random variable x follows.

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

Is this probability distribution valid? Explain.
What is the probability that x = 30?
What is the probability that x is less than or equal to 25?
What is the probability that x is greater than 30?

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(See Solution) The probability distribution for the random variable x follows. x f(x) 20 0.2 25 0.15 30 0.25 35 0.4 Is this probability distribution valid?

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