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3 cards from this section. Quick, good the night before a test.
What is the probability of getting exactly 2 heads when tossing a coin 4 times?
Remember to define n, k, and p before calculating.
A factory produces 90% defect-free products. What is the probability that out of 10 products, exactly 9 are defect-free?
Use the PMF formula to solve this.
What is the PMF formula for the Binomial Distribution?
Think about how to express combinations and probabilities.
Is it true that the Binomial Distribution can only have two outcomes?
Remember the definition of a Bernoulli trial.
In a city, 30% of the population is a smoker. If we survey 15 people, what is the probability that exactly 5 are smokers?
Use the binomial probability formula and remember to calculate the binomial coefficient.
A basketball player has a free throw success rate of 75%. If he takes 20 shots, what is the probability that he scores exactly 15 times?
Keep track of your n, k, p, and q when calculating.
1 more question in this section. Enroll free to practise them all.
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