This selection will result in SALT drawing a histogram of the "Enrolled" variable after determining a Bin/Class Width value and Starting Point. In the Bin/Class Width box, enter 1, and in the Starting Point box, enter 475, then click the Recalculate Graph button so the bins start at 475 and have a width of 1. Look at the histogram shown in the right panel of this page and notice there is a "Summary Table" below the graph that provides some summary statistics for this variable as well. The minimum value for "Enrolled" is 475 ✔. Note that this observation is found in the bin that covers the interval from 475 to 476 with the left endpoint included but the right endpoint not included. The Enrolled variable has one mode and it is 1 X
This selection will result in SALT drawing a histogram of the "Enrolled" variable after determining a Bin/Class Width value and Starting Point. In the Bin/Class Width box, enter 1, and in the Starting Point box, enter 475, then click the Recalculate Graph button so the bins start at 475 and have a width of 1. Look at the histogram shown in the right panel of this page and notice there is a "Summary Table" below the graph that provides some summary statistics for this variable as well. The minimum value for "Enrolled" is 475 ✔. Note that this observation is found in the bin that covers the interval from 475 to 476 with the left endpoint included but the right endpoint not included. The Enrolled variable has one mode and it is 1 X
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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Transcribed Image Text:### Histogram Analysis of Enrollment Data
This educational resource provides an analysis of enrollment data using a histogram. The interface also includes other data visualization options such as box plots, dot plots, scatter plots, bar charts, pie charts, and probability plots. The current selection is a histogram.
#### Settings Panel
- **Variable to Graph:** Enrolled (the selected variable for graphical representation).
- **Grouping Variable:** Not selected.
- **Histogram Settings:**
- **Bin/Class Width:** 1
- **Starting Point:** 475
- **Category Labels:**
- **Frequency:** Selected option to display the frequency of enrolled data.
- **Relative Frequency:** Option available but not selected.
- **Recalculate Graph Button:** Option to update the histogram based on any changes in settings.
#### Histogram Details
The histogram displayed shows the frequency distribution of the enrollment data. The x-axis represents the enrollment numbers (ranging from 475 to 489), and the y-axis represents the frequency of these enrollment numbers.
- The most frequent enrollment numbers fall within the range of 481 to 484, with the highest frequency around 483 and 484.
- Enrollment numbers less frequent outside this range, indicating fewer occurrences.
#### Summary Table
Below the histogram, a summary table provides key statistics for the enrolled data:
- **Mean:** 482.3146
- **Standard Deviation:** 2.8108
- **N (Sample Size):** 178
- **Minimum Value:** 475
- **Q1 (First Quartile):** 481
- **Median:** 483
- **Q3 (Third Quartile):** 484
- **Maximum Value:** 488
These summary statistics give a comprehensive overview of the data's central tendency, spread, and distribution shape.
This tool is essential for visualizing and understanding the distribution of enrollment data, allowing educators, researchers, and data analysts to make informed decisions based on the frequency and spread of the data.
Transcribed Image Text:### Drawing a Histogram of the "Enrolled" Variable
To create a histogram of the "Enrolled" variable using SALT (Statistical Analysis and Learning Tool), follow these steps:
1. **Determine Bin/Class Width and Starting Point:**
- Enter `1` in the Bin/Class Width box.
- Enter `475` in the Starting Point box.
2. **Recalculate the Graph:**
- Click the "Recalculate Graph" button to update the histogram so the bins start at `475` and have a width of `1`.
3. **Interpret the Histogram:**
- The histogram will be shown in the right panel of the page.
- Below the histogram, a "Summary Table" will provide some summary statistics for the "Enrolled" variable.
4. **Details to Note:**
- The minimum value for "Enrolled" is `475`. This observation is found in the bin covering the interval from `475` to `476`, with the left endpoint included but the right endpoint not included.
- The "Enrolled" variable has one mode, and it is `1`.
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