Page 24 - CT_AI_Class-8
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Students who spend less time in outdoor activities usually use gadgets more.
Higher screen time may lead to lower academic performance.
Students who have adequate sleep and limited screen time generally perform better
academically.
Increased outdoor activities usually help in reducing gadget usage.
Balanced routine with study, sleep and outdoor activity leads to healthier screen time
habits.
Now the trained model is tested using new student data.
Student Gadget Screen Sleep Outdoor Academic Screen
Type Time Hours Activity Score Time Level
Student 6 Mobile 5 hrs 6 30 min 66 High
Student 7 Laptop 2 hrs 8 1 hr 82 Low
Student 8 Tablet 3.5 hrs 7 45 min 72 High
After evaluating the model by using the test data, the mode predicts the following result:
Student Gadget Screen Sleep Outdoor Academic Actual Predicted
Type Time Hours Activity Score Screen Screen
Time Level Time Level
Student 6 Mobile 5 hrs 6 30 min 66 High High
Student 7 Laptop 2 hrs 8 1 hr 82 Low Low
Student 8 Tablet 3.5 hrs 7 45 min 72 High Low
According to the predicted data, we see:
Correct predictions = 2
Incorrect predictions = 1
Now, calculate the model accuracy:
Accuracy = (Correct Predictions / Total Predictions) × 100
Accuracy = (2/3) × 100
Accuracy = 66.7%
This means the model needs improvement and further refinement to achieve better performance.
If the model performance is not satisfactory, we improve the model. This process is called Model
22 Artificial Intelligence (CT & AI)-VIII

