"tic" data is in "ISwR" package. To access this data you need to first install "ISwR"package. Then load the library. 1. To install package "ISwR" in R use the command: install.packages("ISwR") 2. Then to load the library. Use command: library(ISWR) Type data() to check which built in data are in the package "ISwR". This should show all the available built in data as: we use nickel data for this part of homework. Type> tlc to see the data For help about nickel data type > ? tlc First attach data: nickel. Use command > attach(tic) (a) Type ?tle this will open up a help file explaining about the 'tlc' data. What is the tlc data about? (b) How many male and how many female are on the study? [hint: table(sex)] (c) Construct a bar diagram of the male and female. Change the color to Red. [hint: barplot(table(sex))] (d) Calculate the average height of the participants. (e) Calculate the variance of the age of the participants. (f) Calculate the standard deviation of the age of the participants. (g) Construct a Histogram of age of the participant. (h) Construct scattered plot age and height [hint: plot(age, height)] Note: To access built in data you must first type these three commands: install.packages("package name") library("package name") attach(data name)