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2 cards from this section. Quick, good the night before a test.
List the sample space for rolling a die.
Consider all the sides of the die.
What is a simple event? Provide an example.
Think of outcomes during random experiments.
What is the sample space for tossing a coin?
Consider what's possible when flipping a coin.
True or False: P(E) for an event E can never be greater than 1.
Think about the definition of probability.
A bag contains 3 red balls and 2 green balls. If one ball is drawn at random, what is the probability of it being red? Now, if another ball is drawn without replacing the first one, what’s the probability that the second ball is also red?
Consider the changing sample space with each draw.
In a survey, there is an 80% chance of passing the exam if you study, and 40% chance if you do not study. If someone passed, what is the probability they studied?
You'll use both the probabilities given and consider all pathways to passing.
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