Question 1
What is the primary goal of the bootstrap method in data science?
Question 2
In a permutation test, what is the key assumption made about the null hypothesis?
Question 3
Which of the following best describes k-fold cross-validation?
Question 4
When using the bootstrap to estimate the confidence interval of the mean, which of the following steps is NOT part of the procedure?
Question 5
Suppose you have a dataset of 100 observations. In a 5-fold cross-validation, how many observations are used for training in each iteration?
