Exam # 1

Arielle Mundy

date()

## [1] "Mon Sep 10 15:18:20 2012"

Due Date: September 14, 2012, 2pm
Total Points: 30

(0) Assign to a variable m the value of 12. Add 8 to this variable (5).

m = 12
m + 8

## [1] 20

(1) Assign to a variable x the sum of 3 and 5. Find the square root of x (5).

x = (3 + 5)
sqrt(x)

## [1] 2.828

(2) Create a vector called y with elements 5, 10, and -20 (5).

y = c(5, 10, -20)

(3) Create a vector z as a concatenation of the variable x and the vector y (5).

z = c(x, y)

(4) List the variables in your workspace (5).

ls()

## [1] "m" "x" "y" "z"

(5) Remove the variables from your workspace (5).

rm(m, x, y, z)

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