Practice Exercise 2 (14.2) - Probability - IB 10 Mathematics

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6 sample questions

Question 1.
What is the sample space when rolling a die?
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Think of all the possible faces of the die.
Question 2.
If you toss a coin, what is the probability of getting tails?
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Consider the number of favorable outcomes.
3Question 3.
What is the probability of drawing a heart from a standard deck?
- 0.25
- 0.75
- 0.50
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Count the number of hearts versus the total cards.
4Question 4.
True or False: If two events are mutually exclusive, they can be independent.
- True
- False
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Consider the definitions of mutually exclusive and independent events.
Question 5.
In a city, the probability of rain on Monday is 0.2 and if it rains Monday, the chance of rain on Tuesday is 0.5. What is the probability that it will rain both days?
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Use the definition of conditional probability.
Question 6.
A box contains 10 red, 5 blue, and 15 green marbles. If 2 marbles are drawn at random, what is the probability that one is red and one is blue?
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Calculate the probabilities of both scenarios and then add them together.

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