Question: For Questions 1- 4, please submit a word file or a PDF file; For Question 5, please submit a .ipynb file. Question 1: Please answer

For Questions 1- 4, please submit a word file or a PDF file; For Question 5, please submit a .ipynb file. Question 1: Please answer the following questions related to Machine Learning concepts: 1) [6 points] Explain what is the bias-variance tradeoff? Describe few techniques to reduce bias and variance respectively. 2) [4 points] What is kfold cross-validation? Why do we need it

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