Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 14 6 19 39 Female 3 4 20 27 Total 17 10 39 66 If one student is chosen at random, Find the probability that the student got a C: Find the probability that the student was male AND got a "C": Find the probability that the student was female OR got an "A": If one student is chosen at random, find the probability that the student got a 'C' GIVEN they are female:
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 14 6 19 39 Female 3 4 20 27 Total 17 10 39 66 If one student is chosen at random, Find the probability that the student got a C: Find the probability that the student was male AND got a "C": Find the probability that the student was female OR got an "A": If one student is chosen at random, find the probability that the student got a 'C' GIVEN they are female:
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section11.1: Measures Of Center And Variation
Problem 31E
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![**Educational Website Content: Probability and Statistics**
## Example Scenario: Analyzing Test Scores
### Dataset Summary
We are given data on the grades achieved by a group of students, categorized by gender. The data is summarized in the table below:
| | A | B | C | Total |
|--------|---|---|----|-------|
| **Male** | 14 | 6 | 19 | 39 |
| **Female** | 3 | 4 | 20 | 27 |
| **Total** | 17 | 10 | 39 | 66 |
### Probabilities
Using the data from the table, we can answer the following probability questions:
**1. Find the probability that the student got a C:**
P(C) = (Number of students who got a C) / (Total number of students)
**2. Find the probability that the student was male AND got a "C":**
P(Male AND C) = (Number of male students who got a C) / (Total number of students)
**3. Find the probability that the student was female OR got an "A":**
P(Female OR A) = (Number of females + Number of students who got an A - Number of female students who got an A) / (Total number of students)
**4. If one student is chosen at random, find the probability that the student got a 'C' GIVEN they are female:**
P(C | Female) = (Number of female students who got a C) / (Total number of female students)
---
### Worked Example
**1. Probability that a randomly chosen student got a C:**
\[ P(C) = \frac{39}{66} \]
**2. Probability that a male student got a "C":**
\[ P(Male \text{ AND } C) = \frac{19}{66} \]
**3. Probability that a student was female OR got an "A":**
\[ P(Female \text{ OR } A) = \frac{27 + 17 - 3}{66} \]
**4. Probability that a student got a 'C' given they are female:**
\[ P(C | Female) = \frac{20}{27} \]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc8e28faf-547f-4c48-bb6d-e40546588d1c%2F573cc7ca-4b4c-4a79-8f4a-af3302c1a87c%2Fzpp2tog_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Educational Website Content: Probability and Statistics**
## Example Scenario: Analyzing Test Scores
### Dataset Summary
We are given data on the grades achieved by a group of students, categorized by gender. The data is summarized in the table below:
| | A | B | C | Total |
|--------|---|---|----|-------|
| **Male** | 14 | 6 | 19 | 39 |
| **Female** | 3 | 4 | 20 | 27 |
| **Total** | 17 | 10 | 39 | 66 |
### Probabilities
Using the data from the table, we can answer the following probability questions:
**1. Find the probability that the student got a C:**
P(C) = (Number of students who got a C) / (Total number of students)
**2. Find the probability that the student was male AND got a "C":**
P(Male AND C) = (Number of male students who got a C) / (Total number of students)
**3. Find the probability that the student was female OR got an "A":**
P(Female OR A) = (Number of females + Number of students who got an A - Number of female students who got an A) / (Total number of students)
**4. If one student is chosen at random, find the probability that the student got a 'C' GIVEN they are female:**
P(C | Female) = (Number of female students who got a C) / (Total number of female students)
---
### Worked Example
**1. Probability that a randomly chosen student got a C:**
\[ P(C) = \frac{39}{66} \]
**2. Probability that a male student got a "C":**
\[ P(Male \text{ AND } C) = \frac{19}{66} \]
**3. Probability that a student was female OR got an "A":**
\[ P(Female \text{ OR } A) = \frac{27 + 17 - 3}{66} \]
**4. Probability that a student got a 'C' given they are female:**
\[ P(C | Female) = \frac{20}{27} \]
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