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Janie asked all of her classmates about the number of pets they have in their households. Her findings are shown in the table.

Number of Pets in Students' Households
\begin{tabular}{|c|c|c|c|c|c|}
\hline
& 0 pets & 1 pet & 2 pets & \begin{tabular}{c}
More than 2 \\
pets
\end{tabular} & Total \\
\hline
Boys & 8 & 4 & 3 & 0 & 15 \\
\hline
Girls & 7 & 6 & 5 & 2 & 20 \\
\hline
Total & 15 & 10 & 8 & 2 & 35 \\
\hline
\end{tabular}

Which statement about the two-way frequency table is true?

A. The survey represents quantitative data.
B. There is a greater percentage of girls who do not own a pet than boys who do not own a pet.
C. The total number of girls who own 2 or more pets is 2.
D. More girls do not own a pet than do own a pet.


Sagot :

Let's analyze the data provided by Janie's survey and evaluate the given statements one by one.

### Step 1: Understand the Data Given
The table shows the number of pets owned by boys and girls in Janie's class:
- Total students: 35 (15 boys + 20 girls)
- Boys without pets: 8
- Girls without pets: 7
- Girls with 2 pets: 5
- Girls with more than 2 pets: 2

### Step 2: Calculating Percentages
- Percentage of boys who do not own a pet:
[tex]\[ \text{Percentage boys no pets} = \left(\frac{8}{35}\right) \times 100 \approx 22.86\% \][/tex]

- Percentage of girls who do not own a pet:
[tex]\[ \text{Percentage girls no pets} = \left(\frac{7}{35}\right) \times 100 \approx 20\% \][/tex]

### Step 3: Evaluating Statements
1. Statement: "The survey represents quantitative data."
- This statement is false. The table represents categorical data (qualitative data) about whether students own 0, 1, 2, or more than 2 pets.

2. Statement: "There is a greater percentage of girls who do not own a pet than boys who do not own a pet."
- We have calculated the percentages:
- Percentage of boys without pets: [tex]\( 22.86\% \)[/tex]
- Percentage of girls without pets: [tex]\( 20.0\% \)[/tex]
- [tex]\( 20.0\% < 22.86\% \)[/tex]
- This statement is false.

3. Statement: "The total number of girls who own 2 or more pets is 2."
- Adding the number of girls with exactly 2 pets and those with more than 2 pets: [tex]\( 5 + 2 = 7 \)[/tex]
- This statement is false.

4. Statement: "More girls do not own a pet than do own a pet."
- Girls without pets: 7
- Total girls: 20
- Girls with pets: [tex]\( 20 - 7 = 13 \)[/tex]
- Comparison: 7 (without pets) vs. 13 (with pets)
- This statement is false.

### Conclusion
Given the analysis:
- Statement 1: False
- Statement 2: False
- Statement 3: False
- Statement 4: False

Therefore, none of the statements about the two-way frequency table are true based on the given data and the calculations above.