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(a) Complete the grouped frequency distribution for the data. (Note that the class width is 5.) (b) Using the classes from part (a), draw the frequency polygon for the data. Note that you can add or remove classes from the figure. Label each class with its midpoint. Test scores Frequency 78.5 to 83.5 Frequency 7. 83.5 to 88.5 6+ 5+ 4+ 88.5 to 93.5 3+ 2+ 93.5 to 98.5 1+ Test scores

(a) Complete the grouped frequency distribution for the data. (Note that the class width is 5.) (b) Using the classes from part (a), draw the frequency polygon for the data. Note that you can add or remove classes from the figure. Label each class with its midpoint. Test scores Frequency 78.5 to 83.5 Frequency 7. 83.5 to 88.5 6+ 5+ 4+ 88.5 to 93.5 3+ 2+ 93.5 to 98.5 1+ Test scores

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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### Educational Content on Grouped Frequency Distribution #### Data The table provided includes individual test scores: 83, 92, 92, 91, 86, 90, 97, 93, 81, 91, 95, 82, 85, 80, 92. #### Task (a): Complete the Grouped Frequency Distribution 1. **Test Scores:** - 78.5 to 83.5 - 83.5 to 88.5 - 88.5 to 93.5 - 93.5 to 98.5 2. **Frequency:** - Count the number of test scores that fall into each class interval. #### Task (b): Draw the Frequency Polygon 1. **Graph Description:** - The horizontal axis (x-axis) represents test scores, marked with class midpoints. - The vertical axis (y-axis) represents frequency, ranging from 0 to 7. - The midpoint of each class is used as a point on the graph. 2. **Steps to Create the Frequency Polygon:** - Plot a point for each class using its midpoint on the x-axis and frequency on the y-axis. - Connect these points with straight lines to form the polygon. **Note:** You can adjust points to remove or add classes if necessary. Ensure each class is appropriately labeled with its midpoint on the x-axis. This content helps students understand how to organize and visually represent data using a frequency distribution and polygon.
Transcribed Image Text:### Educational Content on Grouped Frequency Distribution #### Data The table provided includes individual test scores: 83, 92, 92, 91, 86, 90, 97, 93, 81, 91, 95, 82, 85, 80, 92. #### Task (a): Complete the Grouped Frequency Distribution 1. **Test Scores:** - 78.5 to 83.5 - 83.5 to 88.5 - 88.5 to 93.5 - 93.5 to 98.5 2. **Frequency:** - Count the number of test scores that fall into each class interval. #### Task (b): Draw the Frequency Polygon 1. **Graph Description:** - The horizontal axis (x-axis) represents test scores, marked with class midpoints. - The vertical axis (y-axis) represents frequency, ranging from 0 to 7. - The midpoint of each class is used as a point on the graph. 2. **Steps to Create the Frequency Polygon:** - Plot a point for each class using its midpoint on the x-axis and frequency on the y-axis. - Connect these points with straight lines to form the polygon. **Note:** You can adjust points to remove or add classes if necessary. Ensure each class is appropriately labeled with its midpoint on the x-axis. This content helps students understand how to organize and visually represent data using a frequency distribution and polygon.
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