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QuizTrain a classifier in the browser/12 min

Checkpoint: your first models

Eight questions on Python basics, scaling, splitting, fitting, reading a confusion matrix, and comparing two models.

8 questions. You need 70% to pass, and you can retake it as many times as you want.

1

What is score after score = 4 followed by score = score + 2?

2

Why does indentation matter inside a Python loop?

3

How many features are in a flattened 8 by 8 digit image?

4

Training pixels were divided by 16. How should a new raw digit be prepared?

5

What does model.fit(X_train, y_train) do?

6

What does stratify=y help preserve when splitting data?

7

Many true 8 images are predicted as 3. What should you inspect?

8

KNN beats your neural network on a fixed evaluation. What should you report?

0 of 8 answered