Answer :
To complete the frequency table for the given data set about the percentage of satisfied customers at Joe's Used Cars, follow these steps:
1. Identify the Class Intervals: The class intervals provided are:
- 84.0 - 86.9
- 87.0 - 89.9
- 90.0 - 92.9
- 93.0 - 95.9
- 96.0 - 98.9
2. List the Data Points: The data points to be sorted into these classes are:
- 88.0, 92.4, 92.0, 94.9, 94.8, 86.5, 84.2, 93.7, 86.9, 89.3, 97.7, 95.8, 90.3, 98.0, 92.9, 94.5, 85.5, 97.8
3. Assign Frequencies:
- Class 84.0 - 86.9:
- The numbers in this range are: 86.5, 84.2, 86.9, and 85.5.
- Frequency = 4
- Class 87.0 - 89.9:
- The numbers in this range are: 88.0 and 89.3.
- Frequency = 2
- Class 90.0 - 92.9:
- The numbers in this range are: 92.4, 92.0, 90.3, and 92.9.
- Frequency = 4
- Class 93.0 - 95.9:
- The numbers in this range are: 94.9, 94.8, 93.7, 95.8, and 94.5.
- Frequency = 5
- Class 96.0 - 98.9:
- The numbers in this range are: 97.7, 98.0, and 97.8.
- Frequency = 3
4. Create the Frequency Table:
- For each class, fill in the frequency based on the counts above.
[tex]\[
\begin{tabular}{|c|c|}
\hline \multicolumn{2}{|c|}{\text{Percentage of Satisfied Customers at Joe's Used Cars}} \\
\hline \text{Class} & \text{Frequency} \\
\hline 84.0-86.9 & 4 \\
\hline 87.0-89.9 & 2 \\
\hline 90.0-92.9 & 4 \\
\hline 93.0-95.9 & 5 \\
\hline 96.0-98.9 & 3 \\
\hline
\end{tabular}
\][/tex]
By following these steps, you can determine the frequency for each given class interval.
1. Identify the Class Intervals: The class intervals provided are:
- 84.0 - 86.9
- 87.0 - 89.9
- 90.0 - 92.9
- 93.0 - 95.9
- 96.0 - 98.9
2. List the Data Points: The data points to be sorted into these classes are:
- 88.0, 92.4, 92.0, 94.9, 94.8, 86.5, 84.2, 93.7, 86.9, 89.3, 97.7, 95.8, 90.3, 98.0, 92.9, 94.5, 85.5, 97.8
3. Assign Frequencies:
- Class 84.0 - 86.9:
- The numbers in this range are: 86.5, 84.2, 86.9, and 85.5.
- Frequency = 4
- Class 87.0 - 89.9:
- The numbers in this range are: 88.0 and 89.3.
- Frequency = 2
- Class 90.0 - 92.9:
- The numbers in this range are: 92.4, 92.0, 90.3, and 92.9.
- Frequency = 4
- Class 93.0 - 95.9:
- The numbers in this range are: 94.9, 94.8, 93.7, 95.8, and 94.5.
- Frequency = 5
- Class 96.0 - 98.9:
- The numbers in this range are: 97.7, 98.0, and 97.8.
- Frequency = 3
4. Create the Frequency Table:
- For each class, fill in the frequency based on the counts above.
[tex]\[
\begin{tabular}{|c|c|}
\hline \multicolumn{2}{|c|}{\text{Percentage of Satisfied Customers at Joe's Used Cars}} \\
\hline \text{Class} & \text{Frequency} \\
\hline 84.0-86.9 & 4 \\
\hline 87.0-89.9 & 2 \\
\hline 90.0-92.9 & 4 \\
\hline 93.0-95.9 & 5 \\
\hline 96.0-98.9 & 3 \\
\hline
\end{tabular}
\][/tex]
By following these steps, you can determine the frequency for each given class interval.