# One Problem only Write a fully executed R-Markdown program and submit a docs fil

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One Problem only
Write a fully executed R-Markdown program and submit a docs file solving and answering questions listed below. For clarity, make sure to give an appropriate title to each section.
Problem 7.3: Predicting Housing Median Prices (a)
7.3 Predicting Housing Median Prices: The file BostonHousing.csv contains information on over 500 census tracts in Boston, where for each tract multiple variables are recorded. The last column (CAT.MEDV) was derived from MEDV, such that it obtains the value 1 if MEDV > 30 and 0 otherwise. Consider the goal of predicting the median value (MEDV) of a tract, given the information in the first 12 columns. Partition the data into training (60%) and validation (40%) sets.
a. Perform a k-NN prediction with all 12 predictors (ignore the CAT.MEDV col[1]umn), trying values of k from 1 to 5. Make sure to normalize the data, and choose function knn() from package class rather than package FNN. To make sure R is using the class package (when both packages are loaded), use class::knn(). What is the best k? What does it mean?

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