Basic Python and Machine Learning Concepts

Which of the following is a correct variable name in Python?

• 1variable

• variable_1

• variable-1

• variable 1

What is the output of: print(2 ** 3)?

• 6

• 8

• 9

• 5

Which of the following is used to define a function in Python?

• func

• function

• def

• define

What is the output of: len([1, 2, 3, 4])?

• 3

• 4

• 5

• Error

Which data type is immutable in Python?

• List

• Dictionary

• Set

• Tuple

What is the full form of 'ML'?

• Machine Learning

• Massive Learning

• Model Learning

• Machine Logic

Which of the following is a supervised learning algorithm?

• K-Means

• Linear Regression

• Apriori

• PCA

What is overfitting in machine learning?

• Model performs well on new data

• Model performs well on training data but poorly on new data

• Model performs poorly on all data

• None of the above

Which library is commonly used for machine learning in Python?

• Pandas

• NumPy

• Scikit-learn

• Matplotlib

Which of these is used to reduce the dimensionality of data?

• Regression

• Classification

• PCA

• Clustering