❤️The staticmethod function in Python is used to define a method that operates on the class itself rather than on its instances. ❤️This type of method does not receive the instance as its first argument, unlike instance methods. ❤️These methods are typically…

❤️The staticmethod function in Python is used to define a method that operates on the class itself rather than on its instances.

❤️This type of method does not receive the instance as its first argument, unlike instance methods.

❤️These methods are typically used for utility functions related to the class that do not require access to instance attributes.

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❓️ Question 20: #CPP
The length of an array in C++ is significant because it determines ____.

1. the number of elements that can be stored in the array

2. the memory allocated for the array

3. the maximum size of the array

4. All of the above

✅ Correct Response: 1

Explanation: The length of an array in C++ is significant because it determines the number of elements that can be stored in the array. It affects the memory allocation for the array and defines the maximum size of the array. Understanding the length of an array is important for proper memory management, accessing array elements, and avoiding potential issues such as accessing out-of-bounds indices.

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❔ Question 19: #scipy
Which of the following methods are commonly used for derivative-based optimization in SciPy?

Option 1: fmin_bfgs

Option 2: minimize with method='BFGS'

Option 3: minimize with method='Newton-CG'

Option 4: fmin

✅ Correct Response: 1, 2, 3

Explanation: Methods like fmin_bfgs and minimize with method='BFGS' or 'Newton-CG' are commonly used for derivative-based optimization in SciPy. fmin, on the other hand, implements the Nelder-Mead algorithm, which is a derivative-free method

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❔ Question 18: #pandas
**To drop rows with a specific value in a DataFrame column, we can use the ____ method in Pandas.

Op**tion 1: remove()

Option 2: delete()

Option 3: drop()

Option 4: dismiss()

✅ Correct Response: 3

Explanation: The drop() method in Pandas can be used to drop rows with a specific value in a DataFrame column.

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❓ Question 16: #python
The expression "x in [1, 2, 3]" is True when:

Option 1: x is equal to 1 or 2 or 3

Option 2: x is equal to any value in the list

Option 3: x is not equal to any value in the list

Option 4: x is equal to the length of the list

✔️ Correct Response: 2

Explanation: The expression "x in [1, 2, 3]" is True when x is equal to any value in the list [1, 2, 3]. The in operator checks if the value exists in the sequence.

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