In a survey, 70% of people like tea and 30% like coffee. If a person is chosen a
Practice Questions
Q1
In a survey, 70% of people like tea and 30% like coffee. If a person is chosen at random, what is the probability that they like tea given that they do not like coffee?
1/3
2/3
1/2
1
Questions & Step-by-Step Solutions
In a survey, 70% of people like tea and 30% like coffee. If a person is chosen at random, what is the probability that they like tea given that they do not like coffee?
Correct Answer: 1
Step 1: Understand the survey results. 70% of people like tea and 30% like coffee.
Step 2: Recognize that if a person does not like coffee, they must like tea because those are the only two options given.
Step 3: Since all people who do not like coffee must like tea, the probability that a person likes tea given that they do not like coffee is 1.
