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3 cards from this section. Quick, good the night before a test.
What is the probability of rolling a 3 on a standard die?
Consider the total outcomes on a die.
If you have a bag with 5 red and 5 blue balls, what is the probability of drawing a red ball?
What fraction of the total balls are red?
What is the probability of an event that is certain?
Think about the opposite of impossible.
True or False: A probability of 0.75 indicates a high chance of occurrence.
Consider what 0.5 means versus higher values.
In a game, the chance of winning is 3 times higher than losing. If the total probability must equal 1, what is the probability of winning?
Set up the relationship between winning and losing probabilities.
A class has 24 students—15 boys and 9 girls. If a professor randomly selects two students, what is the probability that at least one is a girl?
Use complementary probability to calculate the required probability.
4 more questions in this section. Enroll free to practise them all.
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