Sahar A.

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Machine Learning

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Question:

Why is naive Bayes so ‘naive’ ?

Sahar A.

Answer:

Because it assumes that all of the features in a data set are equally important and independent. But in real world scenarios these assumption are rarely true. Also it has no regularization term so it is prone to overfitting

Calculus

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Question:

Find derivative of $$ x^{2} $$

Sahar A.

Answer:

Using power rule : $$ \frac{d}{dx}(x^{n})=nx^{n-1} $$ Solution: $$ 2x$$

Algebra

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Question:

Simplify the expression: $$ 2(a -3) + 4b - 2(a -b -3) + 5 $$

Sahar A.

Answer:

First Step: Open brackets and apply multiplication operation $$ 2a - 6 + 4b - 2a +2b +6 +5$$ Second Step: Combine $$ a $$ variable and $$ b $$ variable and other constants as: $$ 2a - 2a + 4b +2b - 6 + 6$$ Third Step: Simplify as: $$ 6b $$ and this is the required answer

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