A student is selected from a class of 40 students, where 25 are girls and 15 are boys. What is the probability that the student is a girl given that the student is not a boy?
Practice Questions
1 question
Q1
A student is selected from a class of 40 students, where 25 are girls and 15 are boys. What is the probability that the student is a girl given that the student is not a boy?
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1/2
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If the student is not a boy, they must be a girl. Therefore, the probability is 1.
Questions & Step-by-step Solutions
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Q
Q: A student is selected from a class of 40 students, where 25 are girls and 15 are boys. What is the probability that the student is a girl given that the student is not a boy?
Solution: If the student is not a boy, they must be a girl. Therefore, the probability is 1.
Steps: 6
Step 1: Understand the total number of students in the class, which is 40.
Step 2: Identify how many of those students are girls, which is 25.
Step 3: Identify how many of those students are boys, which is 15.
Step 4: Recognize that if we are looking for a student who is not a boy, we are only considering the girls.
Step 5: Since the only students left (not boys) are girls, the probability of selecting a girl in this case is 100%.
Step 6: Therefore, the probability that the student is a girl given that the student is not a boy is 1.
