A relative frequency table is made from data in a frequency table.

Frequency Table:
\begin{tabular}{|c|c|c|c|}
\hline & [tex]$U$[/tex] & [tex]$V$[/tex] & Total \\
\hline S & 5 & 8 & 13 \\
\hline T & 4 & 2 & 6 \\
\hline Total & 9 & 10 & 19 \\
\hline
\end{tabular}

Relative Frequency Table:
\begin{tabular}{|c|c|c|c|}
\hline & [tex]$U$[/tex] & [tex]$V$[/tex] & Total \\
\hline S & [tex]$\ldots$[/tex] & [tex]$\ldots$[/tex] & [tex]$\ldots$[/tex] \\
\hline T & [tex]$\ldots$[/tex] & [tex]$\ldots$[/tex] & [tex]$\ldots$[/tex] \\
\hline Total & [tex]$\ldots$[/tex] & [tex]$\ldots$[/tex] & [tex]$\ldots$[/tex] \\
\hline
\end{tabular}

What is the value of [tex]$k$[/tex] in the relative frequency table? Round the answer to the nearest percent.

A. [tex]$2\%$[/tex]
B. [tex]$11\%$[/tex]
C. [tex]$20\%$[/tex]
D. [tex]$33\%$[/tex]



Answer :

To find the value of [tex]\( k \)[/tex] in the relative frequency table, we need to determine the relative frequency of the cell corresponding to [tex]\( T \)[/tex] and [tex]\( V \)[/tex] (which is 2 from the frequency table) and then convert that frequency to a percentage.

1. Identify the frequency: From the given frequency table, the frequency for [tex]\( T \)[/tex] and [tex]\( V \)[/tex] is 2.

2. Identify the total number of observations: The total number of observations in the frequency table is 19.

3. Calculate the relative frequency: To get the relative frequency, divide the frequency of [tex]\( T \)[/tex] and [tex]\( V \)[/tex] by the total number of observations.
[tex]\[ \text{Relative Frequency} = \frac{\text{Frequency of } T \text{ and } V}{\text{Total number of observations}} = \frac{2}{19} \][/tex]

4. Convert the relative frequency to a percentage: Multiply the relative frequency by 100.
[tex]\[ \text{Percentage} = \left(\frac{2}{19}\right) \times 100 \][/tex]

5. Round to the nearest percent:
[tex]\[ \text{Percentage} \approx 10.53\% \implies 11\% \][/tex]
When rounding 10.53% to the nearest percent, we get 11%.

Therefore, the value of [tex]\( k \)[/tex] in the relative frequency table is [tex]\( 11\% \)[/tex].

So, the final answer is:

[tex]\[ \boxed{11\%} \][/tex]