Load Libraries

# Load any R Packages you may need

Exercise 1

The state of Arizona records the number of automobile deaths two years ago in each of the state’s 14 counties:

(a)

Using R, enter these data into a variable called autodths.

# Type your code here

autodths <- c(30, 15, 183, 9, 7, 39, 28, 30, 76, 13, 21, 18, 323, 3)
autodths
##  [1]  30  15 183   9   7  39  28  30  76  13  21  18 323   3
length(autodths)
## [1] 14

(b)

What is the mean number of deaths per county?

# Type your code here
mean(autodths)
## [1] 56.78571

(c)

What is the median number of deaths per county? median(autodths)

# Type your code here

Exercise 2

In a survey of students several years ago, one question asked for each student’s political preference (Democrat (D), Independent (I), or Republican (R)). Here are the 14 responses:

(a)

Using R, enter these data into a variable called polpref.

# Type your code here
polpref <- c("D", "I", "I", "D", "I", "D", "I", "I", "I", "D", "I", "R", "D", "D")
polpref
##  [1] "D" "I" "I" "D" "I" "D" "I" "I" "I" "D" "I" "R" "D" "D"

(b)

Use the tally() function to determine the most popular choice of political preference.

# Type your code here
summary(factor(polpref))
## D I R 
## 6 7 1

#was having issues with the mosaic package install, i know instructions said to use tally, for the sake of completing the assignment, i used summary, sorry

The most popular choice of political preference is TYPE YOUR ANSWER HERE #Indendent * * *

Exercise 3

(a)

Create a Canva Presentation with two slides:

  • Slide 1: Create a data visualization for the data in Exercise 1
  • Slide 2: Create a data visualization for the data in Exercise 2

(b)

Embed your Canva Presentation Here: INSERT IFRAME EMBED CODE. DON’T FORGET to add in data-external="1" at the end of your <iframe> or else R-Markdown will not display properly.

(c)

URL Link to Canva Site: Your Name - Homework 1

All done!

Knit the completed R Markdown file as a HTML document (click the “Knit” button at the top of the script editor window) and upload it to the submission portal on Canvas.