Statistics › Section D · Discrete random variables › Topic D.3
The binomial distribution
Flip, check, guess - whenever a fixed number of independent yes-or-no trials produces a count of successes, the binomial distribution gives the exact probabilities of every possible count. It is the workhorse of discrete probability.
In this topic
- Counting successes
- Binomial settings: check BINS
- The binomial formula
- Mean and standard deviation
- Worked example: exactly three heads in five flips
- Worked example: defectives in a sample
- "At least" questions
- Shape of binomial distributions
- Common mistakes to avoid
- Key takeaways
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