Get the answers you've been searching for with IDNLearn.com. Get accurate and detailed answers to your questions from our knowledgeable and dedicated community members.
Sagot :
To solve this problem, we need to determine the percentage of students who passed the second exam and also passed the first exam, given the provided percentages.
Here's the step-by-step solution:
1. Identify the given percentages:
- The percentage of students who passed the second exam is [tex]\(60\%\)[/tex].
- The percentage of students who passed both exams is [tex]\(48\%\)[/tex].
2. Understand the relationship between the percentages:
- We are asked to find the percentage of students who passed the second exam that also passed the first exam.
3. Set up the problem:
- Let [tex]\(P(\text{Second})\)[/tex] represent the percentage of students who passed the second exam.
- Let [tex]\(P(\text{Both})\)[/tex] represent the percentage of students who passed both exams.
- We need to find [tex]\(P(\text{First} \mid \text{Second})\)[/tex], which is the conditional probability that a student passed the first exam given that they passed the second exam.
4. Use the conditional probability formula:
[tex]\[ P(\text{First} \mid \text{Second}) = \frac{P(\text{Both})}{P(\text{Second})} \times 100\% \][/tex]
5. Substitute the given values into the formula:
[tex]\[ P(\text{First} \mid \text{Second}) = \frac{48\%}{60\%} \times 100\% \][/tex]
6. Calculate the result:
[tex]\[ P(\text{First} \mid \text{Second}) = \frac{48}{60} \times 100\% = 0.8 \times 100\% = 80\% \][/tex]
Therefore, [tex]\(80\%\)[/tex] of the students who passed the second exam also passed the first exam.
The correct answer is [tex]\( \boxed{80\%} \)[/tex].
Here's the step-by-step solution:
1. Identify the given percentages:
- The percentage of students who passed the second exam is [tex]\(60\%\)[/tex].
- The percentage of students who passed both exams is [tex]\(48\%\)[/tex].
2. Understand the relationship between the percentages:
- We are asked to find the percentage of students who passed the second exam that also passed the first exam.
3. Set up the problem:
- Let [tex]\(P(\text{Second})\)[/tex] represent the percentage of students who passed the second exam.
- Let [tex]\(P(\text{Both})\)[/tex] represent the percentage of students who passed both exams.
- We need to find [tex]\(P(\text{First} \mid \text{Second})\)[/tex], which is the conditional probability that a student passed the first exam given that they passed the second exam.
4. Use the conditional probability formula:
[tex]\[ P(\text{First} \mid \text{Second}) = \frac{P(\text{Both})}{P(\text{Second})} \times 100\% \][/tex]
5. Substitute the given values into the formula:
[tex]\[ P(\text{First} \mid \text{Second}) = \frac{48\%}{60\%} \times 100\% \][/tex]
6. Calculate the result:
[tex]\[ P(\text{First} \mid \text{Second}) = \frac{48}{60} \times 100\% = 0.8 \times 100\% = 80\% \][/tex]
Therefore, [tex]\(80\%\)[/tex] of the students who passed the second exam also passed the first exam.
The correct answer is [tex]\( \boxed{80\%} \)[/tex].
We appreciate your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. Find the answers you need at IDNLearn.com. Thanks for stopping by, and come back soon for more valuable insights.