Explore Westonci.ca, the premier Q&A site that helps you find precise answers to your questions, no matter the topic. Our Q&A platform provides quick and trustworthy answers to your questions from experienced professionals in different areas of expertise. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

5.4.3 Quiz: Two-Way Frequency Tables

Question 1 of 10:

Northlake High School has two lunch periods. Students can eat their lunch in the cafeteria or on an outside patio. About [tex]31\%[/tex] of students who have first lunch eat outside. Compare this with the percentage of second-lunch students who eat outside.

\begin{tabular}{|c|c|c|c|}
\hline & Eat outside & Eat inside & Total \\
\hline First lunch & 0.17 & 0.38 & 0.55 \\
\hline Second lunch & 0.21 & 0.24 & 0.45 \\
\hline Total & 0.38 & 0.62 & 1.0 \\
\hline
\end{tabular}

Select the true statement.


Sagot :

To determine the percentage of second-lunch students who eat outside, we can use the given data from the frequency table. Let's break down the process step-by-step:

1. Identify the relevant data:
- For first lunch:
- Students who eat outside: 0.17
- Total students: 0.55

- For second lunch:
- Students who eat outside: 0.21
- Total students: 0.45

2. Calculate the percentage of first-lunch students who eat outside:
- We are given that [tex]$31 \%$[/tex] of students who have first lunch eat outside. This is already provided in the problem.

3. Calculate the percentage of second-lunch students who eat outside:
- We need to calculate this value using the provided data.

4. Perform the calculation for second-lunch students:
- The formula to find the percentage is:
[tex]\[ \text{Percentage} = \left( \frac{\text{Number of students who eat outside}}{\text{Total number of students}} \right) \times 100 \][/tex]
- Plugging in the values for second lunch:
[tex]\[ \text{Percentage of second-lunch students who eat outside} = \left( \frac{0.21}{0.45} \right) \times 100 \approx 46.67\% \][/tex]

Thus, the percentage of second-lunch students who eat outside is approximately [tex]\(46.67 \%\)[/tex].

Comparing the percentages:
- Percentage of first-lunch students who eat outside: [tex]\(31 \%\)[/tex]
- Percentage of second-lunch students who eat outside: [tex]\(46.67 \%\)[/tex]

This comparison shows that a higher percentage of students eat outside during the second lunch (approximately [tex]\(46.67\%\)[/tex]) compared to the first lunch ([tex]\(31\%\)[/tex]).

True Statement:
- "A higher percentage of students eat outside during the second lunch compared to the first lunch."
We appreciate your time. Please come back anytime for the latest information and answers to your questions. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Thank you for visiting Westonci.ca, your go-to source for reliable answers. Come back soon for more expert insights.