Practice Probability (4) - Probability

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10 questions

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6 sample questions

Question 1.
List the sample space for rolling a die.
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Consider all the numbers on a standard die.
Question 2.
What is the probability of getting Heads when tossing a fair coin?
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Count the favorable and possible outcomes.
3Question 3.
What is the probability of rolling a 4 on a fair six-sided die?
- 1/6
- 1/3
- 1/2
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Think about the total possible outcomes of a die.
4Question 4.
If two events are independent, what is P(A ∩ B)?
- True
- False
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Recall the definition of independent events.
Question 5.
A box contains 5 white and 5 black balls. If you draw two balls at random without replacement, what is the probability that both balls are white?
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Break the problem into two steps.
Question 6.
Consider a scenario where a medical test for a disease is 99% accurate. If 1% of the population has the disease, what is the probability that a person who tests positive actually has the disease?
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Consider the population's split into those with and without the disease.

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