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Question 1

a) Build a knn classifier to classify iris dataset.

b) Use k-fold cross validation with k=15 repeated 40 times.

c) Calculate the accuracy, mmce and confusion matrix

d) If the measurement of Sepal.Length, Sepal.Width, Petal.Length and Petal.Width for a data are 5.9 , 3 , 4.2 and 1.8 respectively. Create a tibble representing this data and use the created model to check the category of this data.