Frekans Poligonu Info

[ \textRelative frequency = \frac\textClass frequency\textTotal sample size ]

| Class Interval | Frequency (f) | |----------------|---------------| | 30 – 40 | 4 | | 40 – 50 | 6 | | 50 – 60 | 12 | | 60 – 70 | 18 | | 70 – 80 | 8 | | 80 – 90 | 2 |

Two or more frequency polygons can be overlaid on the same axes for easy comparison (e.g., boys vs. girls, pre-test vs. post-test). 5. Relative Frequency Polygon When comparing datasets of different sizes, use relative frequencies:

The shape remains identical to the raw frequency polygon, but the y-axis scale changes to proportions (0 to 1) or percentages (0 to 100%). This normalization allows fair visual comparison. Scores of Group A (n=50) and Group B (n=30) – relative frequencies:

Node-RED: Low-code programming for event-driven applications.

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