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5 cards from this section. Quick, good the night before a test.
What is the probability of rolling a die and getting a 2?
Think about how many total outcomes there are.
If you flip a fair coin, what is the probability of getting tails?
Consider the two possible outcomes.
What is the probability of rolling a 4 on a standard die?
Remember the total outcomes for rolling a die.
If two events A and B cannot occur together, what are they called?
Think about the definitions of independent and mutually exclusive events.
A box contains 4 red, 6 blue, and 5 green balls. If two balls are drawn without replacement, what is the probability that both are blue?
Use the multiplication rule for probabilities in sequences.
In a group of 100 people, 60 like tea, and 25 like coffee. If 10 like both, what is the probability that a person selected at random likes either tea or coffee?
Remember to use the addition rule with overlaps.
6 more questions in this section. Enroll free to practise them all.
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