What is always true of a probability function?
Correct answer C. Non-negative
Explanation
Probabilities can be zero but never negative, so a probability function always gives values that are non-negative, and they sum to 1.
Tip: press A, B, C or D to answer, and N for the next question.
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More Statistics questions
See allWhich of the following is not a requirement of the binomial distribution?
Correct answer D. Equally likely outcomes
How can a discrete probability distribution be represented?
Correct answer D. All of these
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Under which condition is the distribution positively skewed?
Correct answer D. p < q
For a discrete random variable X, what is E(X) equal to?
Correct answer C. ∑x·P(x)
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