A survey finds that 60% of people prefer coffee over tea, and 30% prefer both coffee and tea. What is the probability that a randomly chosen person prefers at least one of the two drinks? Define the following events: • A: Preferring coffee. • B: Preferring tea.
A survey finds that 60% of people prefer coffee over tea, and 30% prefer both coffee and tea. What is the probability that a randomly chosen person prefers at least one of the two drinks? Define the following events: • A: Preferring coffee. • B: Preferring tea.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 8ECP: In Example 8, what is the probability that an employee chosen at random has 30 or more years of...
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A survey finds that 60% of people prefer coffee over tea, and 30% prefer
both coffee and tea. What is the probability that a randomly chosen
person prefers at least one of the two drinks? Define the following events:
• A: Preferring coffee.
• B: Preferring tea.
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