I an not a good 9. Dravel 10 Sorry 8 7- 5- 4 3. 1 80 90 100 110 120 130 140 150 F. How many classes (a.k.a. bars) does this histogram have for the 1Q data? G. What is the class width? H. Which class has the greatest number of students in it? I. How would you describe the shape of the distribution?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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### Sketch of Histogram

This histogram represents IQ data distribution. The x-axis denotes IQ scores ranging from 80 to 150, while the y-axis represents the frequency of occurrences within each class interval.

**Histogram Details:**
1. The intervals between the scores are marked as follows: 80-90, 90-100, 100-110, 110-120, 120-130, 130-140, and 140-150.
2. The frequency for each class interval is displayed at the top of each bar:
   - 80-90: 3
   - 90-100: 5
   - 100-110: 7
   - 110-120: 9
   - 120-130: 8
   - 130-140: 6
   - 140-150: 1

### Questions and Answers

**F. How many classes (a.k.a. bars) does this histogram have for the IQ data?**  
There are 7 classes.

**G. What is the class width?**  
The class width is 10.

**H. Which class has the greatest number of students in it?**  
The 110-120 class has the greatest number of students, with a frequency of 9.

**I. How would you describe the shape of the distribution?**  
The distribution is approximately bell-shaped, with the highest frequency near the middle and tapering off towards the ends.
Transcribed Image Text:### Sketch of Histogram This histogram represents IQ data distribution. The x-axis denotes IQ scores ranging from 80 to 150, while the y-axis represents the frequency of occurrences within each class interval. **Histogram Details:** 1. The intervals between the scores are marked as follows: 80-90, 90-100, 100-110, 110-120, 120-130, 130-140, and 140-150. 2. The frequency for each class interval is displayed at the top of each bar: - 80-90: 3 - 90-100: 5 - 100-110: 7 - 110-120: 9 - 120-130: 8 - 130-140: 6 - 140-150: 1 ### Questions and Answers **F. How many classes (a.k.a. bars) does this histogram have for the IQ data?** There are 7 classes. **G. What is the class width?** The class width is 10. **H. Which class has the greatest number of students in it?** The 110-120 class has the greatest number of students, with a frequency of 9. **I. How would you describe the shape of the distribution?** The distribution is approximately bell-shaped, with the highest frequency near the middle and tapering off towards the ends.
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