What is the possibility that x is greater than 30

Reference no: EM1316661

Probability using discrete distribution.

The probability distribution for the random variable x follows

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

a) Is this probability distribution valid? Clarify

b) What is the prospect that x = 30?

c) What is the possibility that x is less than or equal to 25?

d) What is the possibility that x is greater than 30?

Reference no: EM1316661

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