Negative binomial distribution
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Intros
Examples
Lessons
- Identifying Negative Binomial Distributions
Identify which of the following experiments below are negative binomial distributions?
i. A fair coin is flipped until head comes up 4 times. What is the probability that the coin will be flipped exactly 6 times?
ii. Cards are drawn out of a deck until 2 exactly aces are drawn. What is the probability that a total of 10 cards will be drawn?
iii. An urn contains 3 red balls and 2 black balls. If 2 balls are drawn with replacement what is the probability that 1 of them will be black?
iv. Roll a die until the first six comes up. What is the probability that this will take 3 rolls? - Determining the Negative Binomial Distribution
A fair coin is flipped until head comes up 4 times. What is the probability that the coin will be flipped exactly 6 times? - Determining the Cumulative Negative Binomial Distribution
A sculptor is making 3 exhibits for an art gallery. There is a probability of 0.75 that every piece of wood she carves into will be good enough to be part of the exhibit. What is the probability that she uses 4 pieces of wood or less?