In this assignment, you will learn some features of R, which is a programming language and free software environment for statistical computing and graphics. Firstly, please download and install R from website https://www.r-project.org/. Then, google and download free book "R and Data Mining: Examples and Case Studies." Go to page 16 of this book, follow the example on this page to create a histogram for dataset iris on Sepal.Length. For more information about iris dataset and how to get it, please refer to Chapter 1.3.1 of the book. Histogram is an accurate representation of the distribution of numerical data. Here is a link about histogram (https://en.wikipedia.org/wiki/Histogram). Files Viewer Plots Packages Help Zoom Export - Publish- 1 Petal.Length p 1.9 s 1.9 2 n = 40 y = (1, 0, 0) 3 Petal.Width p 1.7 4 Petal.Length p = 0.026 n = 32 y = (0, 0.031, 0.969) s 4.4 5 n = 21 y = (0, 1, 0) > 4.4 6 n = 19 y = (0, 0.842, 0.158) Files Viewer Publish- Plots Packages Help Zoom - Export- 1 Petal.Length p 1.9 3 Petal. Width p 1.7 4 Petal.Length p = 0.026 s 4.4 > 4.4 Node 5 (n = 21) Node 6 (n = 19) Node 2 (n = 40) 1 0.8 0.6 0.4 0.2 0 0.8 0.6 0.4 0.2 0 0.8 0.6 0.4 0.2 0 Node 7 (n = 32) 1 0.8 0.6 0.4 0.2 0 setosa setosa setosa setosa testPred setosa versicolor virginica setosa 10 0 O versicolor 0 12 2 virginica 0 0 14 Please explain why we want to see the table below. Give the classification accuracies for both tables below and above. Which accuracy is higher and is it reasonable and why? setosa versicolor virginica setosa 40 0 O versicolor 0 37 3 virginica 0 1 31