In a survey, 300 adults and children were asked whether they preferred hamburgers or pizza. The survey data are shown in the relative frequency table below.

\begin{tabular}{|c|l|l|c|}
\hline & Hamburgers & Pizza & Total \\
\hline Adults & 0.24 & 0.36 & \\
\hline Children & 0.11 & 0.29 & \\
\hline Total & & & \\
\hline
\end{tabular}

What percentage of the people surveyed prefer pizza?

A. [tex]$65\%$[/tex]

B. [tex]$36\%$[/tex]

C. [tex]$29\%$[/tex]

D. [tex]$60\%$[/tex]



Answer :

To determine the percentage of people who prefer pizza, we need to analyze the data provided in the survey table.

Here is the relative frequency table once more for clarity:

[tex]\[ \begin{array}{|c|l|l|c|} \hline & \text{Hamburgers} & \text{Pizza} & \text{Total} \\ \hline \text{Adults} & 0.24 & 0.36 & \\ \hline \text{Children} & 0.11 & 0.29 & \\ \hline \text{Total} & & & \\ \hline \end{array} \][/tex]

1. Identify Relative Frequencies for Pizza:
- Adults who prefer pizza: [tex]\(0.36\)[/tex]
- Children who prefer pizza: [tex]\(0.29\)[/tex]

2. Calculate the Total Relative Frequency for Pizza:
[tex]\[ \text{Total Relative Frequency for Pizza} = 0.36 (\text{adults}) + 0.29 (\text{children}) \][/tex]

3. Calculate this value step-by-step:
[tex]\[ 0.36 + 0.29 = 0.65 \][/tex]

4. Convert the Relative Frequency to a Percentage:
- To convert a relative frequency to a percentage, multiply by 100.
[tex]\[ \text{Percentage of People Who Prefer Pizza} = 0.65 \times 100 = 65\% \][/tex]

5. Final Answer:
Based on the calculated value, the percentage of people surveyed who prefer pizza is [tex]\(65\%\)[/tex].

The correct answer is:
[tex]\[ \boxed{65\%} \][/tex]