Westonci.ca makes finding answers easy, with a community of experts ready to provide you with the information you seek. Join our Q&A platform to connect with experts dedicated to providing precise answers to your questions in different areas. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

As people exited a movie theater, they were informally surveyed about whether they enjoyed the movie or not.

Males
- Enjoyed: 47
- Did not enjoy: 13

Females
- Enjoyed: 53
- Did not enjoy: 3

Survey on Movie
\begin{tabular}{|c|c|c|c|}
\hline
& Enjoyed & \begin{tabular}{c}
Did Not \\
Enjoy
\end{tabular} & Total \\
\hline
Males & [tex]$a$[/tex] & [tex]$11\%$[/tex] & \\
\hline
Females & [tex]$46\%$[/tex] & [tex]$b$[/tex] & \\
\hline
\end{tabular}

What are the values of [tex]$a$[/tex] and [tex]$b$[/tex] in the relative frequency table for the survey results? Round answers to the nearest percent.

A. [tex]$a = 40\%, b = 4\%$[/tex]
B. [tex]$a = 41\%, b = 3\%$[/tex]
C. [tex]$a = 47\%, b = 3\%$[/tex]
D. [tex]$a = 41\%, b = 19\%$[/tex]

Sagot :

To determine the values of [tex]\( a \)[/tex] and [tex]\( b \)[/tex] in the relative frequency table for the survey results, we need to follow a detailed step-by-step solution:

1. Calculate the Total Number of Respondents:
- First, identify the number of respondents in each category.
- Males who enjoyed the movie: 47
- Males who did not enjoy the movie: 13
- Females who enjoyed the movie: 53
- Females who did not enjoy the movie: 3

The total number of males is:
[tex]\[ \text{Total males} = 47 + 13 = 60 \][/tex]

The total number of females is:
[tex]\[ \text{Total females} = 53 + 3 = 56 \][/tex]

Therefore, the total number of respondents is:
[tex]\[ \text{Total respondents} = 60 + 56 = 116 \][/tex]

2. Calculate the Relative Frequency for Males Who Enjoyed the Movie (a):
- The proportion of males who enjoyed the movie can be calculated as:
[tex]\[ \text{Relative frequency of males enjoyed} = \frac{47}{116} \times 100\% \][/tex]

Computing this gives:
[tex]\[ \frac{47}{116} \approx 0.4052 \][/tex]

Converting to a percentage:
[tex]\[ 0.4052 \times 100 \approx 40.52\% \][/tex]

Rounding to the nearest whole number:
[tex]\[ a \approx 41\% \][/tex]

3. Calculate the Relative Frequency for Females Who Did Not Enjoy the Movie (b):
- The proportion of females who did not enjoy the movie is:
[tex]\[ \text{Relative frequency of females did not enjoy} = \frac{3}{116} \times 100\% \][/tex]

Computing this gives:
[tex]\[ \frac{3}{116} \approx 0.0259 \][/tex]

Converting to a percentage:
[tex]\[ 0.0259 \times 100 \approx 2.59\% \][/tex]

Rounding to the nearest whole number:
[tex]\[ b \approx 3\% \][/tex]

Thus, the values of [tex]\( a \)[/tex] and [tex]\( b \)[/tex] are:
[tex]\[ a = 41\%, \quad b = 3\% \][/tex]

Therefore, the correct answer is:
[tex]\[ \boxed{a = 41\%,\, b = 3\%} \][/tex]