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4 cards from this section. Quick, good the night before a test.
What is the probability of getting exactly 2 heads when flipping a fair coin 3 times?
Use the formula with n = 3 and p = 0.5.
Calculate the mean for a binomial distribution where n = 4 and p = 0.25.
Remember the formula for mean.
What does the binomial distribution model?
Think about what outcomes we're measuring.
True or False: The mean of a binomial distribution is always greater than zero.
Consider the value of p in the formula.
A bakery produces 200 loaves of bread daily, estimating 5% are defective. Using binomial distribution, calculate the probability of getting exactly 15 defective loaves in a day.
Utilize the binomial formula with correct values.
In a survey of 150 people, the probability of selecting someone who prefers tea is 0.4. Calculate the probability that at least 60 people prefer tea.
Use binomial cumulative distribution to simplify calculations.
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