Data Visualizationmedium
0:00.0
A histogram of final exam scores for 400 students shows:
| Score Interval | Frequency |
|---|---|
| [50, 60) | 20 |
| [60, 70) | 60 |
| [70, 80) | 160 |
| [80, 90) | 120 |
| [90, 100] | 40 |
The calculated mean is 78 and standard deviation is 8. Which of the following observations suggests this distribution is approximately normal (Gaussian)?
A histogram of final exam scores for 400 students shows:
| Score Interval | Frequency | |---|---| | [50, 60) | 20 | | [60, 70) | 60 | | [70, 80) | 160 | | [80, 90) | 120 | | [90, 100] | 40 |
The calculated mean is 78 and standard deviation is 8. Which of the following observations suggests this distribution is approximately normal (Gaussian)?