Answer: Fixed n trials, each success probability p, independent, discrete.
- A Continuous random variables measured across a defined interval
- B Fixed n trials, each success probability p, independent, discrete
- C Symmetric distributions specifically where p equals one half
- D Rare events occurring over a continuous span of time and space
Correct answer: B. Fixed n trials, each success probability p, independent, discrete
Explanation: Binomial: n fixed trials, each independent, binary (success/failure), constant p. P(X=r) = nCr p<sup>r</sup> q<sup>n-r</sup>.
Venn diagram of the universal set U with events A and B, showing the intersection (A and B), the parts unique to each event, and the complement region outside both.
Concept context
Chance, events, conditional probability, and Bayes theorem