Yolanda wanted to see if there was a connection between red hair and green eyes. She observed people walking past her on the street and noted their hair and eye color.

| Hair Color | Green Eyes | Other Eye Color |
|------------|------------|-----------------|
| Red | 18 | 29 |
| Other | 114 | 650 |

Consider the relative frequency table.

\begin{tabular}{|c|c|c|c|}
\hline
\multicolumn{4}{|c|}{ Hair and Eye Color } \\
\hline
& \begin{tabular}{c} Green \\ Eyes \end{tabular}
& \begin{tabular}{c} Other Eye \\ Color \end{tabular}
& Total \\
\hline
\end{tabular}

To the nearest whole percent, what is the value of [tex]$x$[/tex] in the table?

A. [tex]$x=14 \%$[/tex]
B. [tex]$x=15 \%$[/tex]
C. [tex]$x=16 \%$[/tex]
D. [tex]$x=18 \%$[/tex]



Answer :

To determine the value of [tex]\( x \)[/tex] (the percentage of people with red hair and green eyes) in the relative frequency table, we need to follow these steps:

1. Identify the given values:
- People with red hair and green eyes: 18
- People with red hair and eyes other than green: 29
- People with hair color other than red and green eyes: 114
- People with hair color other than red and eyes other than green: 650

2. Calculate the total number of observations:
- Sum all the given values:
[tex]\[ 18 + 29 + 114 + 650 = 811 \][/tex]
- This tells us that there were 811 people observed in total.

3. Determine the percentage of people with red hair and green eyes:
- To find this percentage, use the formula:
[tex]\[ x = \left( \frac{\text{Number of people with red hair and green eyes}}{\text{Total number of observations}} \right) \times 100 \][/tex]
- Plug in the known values:
[tex]\[ x = \left( \frac{18}{811} \right) \times 100 \][/tex]
- Calculate the value of [tex]\( x \)[/tex]:
[tex]\[ x \approx 2.219482120838471 \% \][/tex]

4. Round the result to the nearest whole percent:
- When rounded to the nearest whole number:
[tex]\[ x \approx 2\% \][/tex]

Therefore, the value of [tex]\( x \)[/tex] to the nearest whole percent is approximately [tex]\( 2\% \)[/tex]. This doesn't match any of the provided multiple-choice options, suggesting there might have been a typographical error in the options or an alternative answer might be considered.