The probability distribution for the random variable x follows. x f(x) 20 0.23 24 0.14 30...

Question

Question

The probability distribution for the random variable x follows.

Is this a valid probability distribution?
SelectYes, because all f(x) are ≥ 0 and sum of f(x)=1Yes, because all f(x) are ≤ 0 and sum of f(x)=1Yes, because all f(x) are ≥ 0 and sum of f(x)>1Yes, because all f(x) are = 0 and sum of f(x)=1Item 1
What is the probability that x = 30 (to 2 decimals)?
What is the probability that x is less than or equal to 24 (to 2 decimals)?
What is the probability that x is greater than 30 (to 2 decimals)?

math Statistics-And-Probability

Answer 1

Answer #1

atl poboloilthes ave gveates thon 2vo х. -3t :6 30 to.33 .63

Answer 2

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