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

###### Question:

The probability distribution for the random variable x follows.

 x f(x) 20 0.23 24 0.14 30 0.30 36 0.33
1. 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
2. What is the probability that x = 30 (to 2 decimals)?

3. What is the probability that x is less than or equal to 24 (to 2 decimals)?

4. What is the probability that x is greater than 30 (to 2 decimals)?

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