Home Page > > Details

Homework 2

Weeks 4 and 5

library(tidyverse)

# Load up the mpg dataset (from the ggplot2 package)

data("mpg")

1. Create a plot comparing the miles per gallon by different driving location (cty or hwy). You may find

this easier to do if you transform the data set using a method we learned in a previous lesson. What do

you see in this plot/what should be the main takeaways?

2. Take the plot you created in 1 and make it publication ready however you see fit (scale, labels, color,

theme, etc.).

3. Create another plot on your own using the mpg data set. Explain why you chose to create the plot that

you did, why you chose the variables you did, and why you think it is an important relationship to look

at. Explain what you see in your plot.

4. Calculate each of the following and tell me what we can take away from each statistic:

• Count of drv

• Quartiles of hwy

• Mean and median of cty

Weeks 6 and 7

5. Take a look at the mpg data set. If we were to predict hwy using a linear regression model, what do you

think would be good to use as predictors? Use any pre-analysis steps or general knowledge of the data

set to support your ideas.

6. Using the mpg data set, build a model using displ, drv, and class to predict hwy. Explain your output

from a practical perspective.

7. Check regression assumptions; explain why each assumption is met or not.

# Load up the geyser data set in the MASS package

library(MASS)

data("geyser")

8. Perform some pre-analysis on the geyser data set; explain what you see.

9. Build a simple linear regression model predicting duration by waiting. Explain output and assumptions.

10. Build a polynomial model predicting the same thing as 9. You choose the degree. Explain your choices

and output. Compare this model with the one you built in 9. Which do you think is better?

Contact Us(Ghostwriter Service)

- QQ：99515681
- WeChat：codinghelp
- Email：99515681@qq.com
- Work Time：8:00-23:00

- Ghostwriter Stock Market Assignment,R ... 2019-11-11
- Cse130-01 Assignmenthelp With ,Ghostwr... 2019-11-11
- Help With Module Assignment,Ghostwrite... 2019-11-10
- Ghostwriter Ising Model Assignment,Gho... 2019-11-10
- Ghostwriter Cmpsci 187 Assignment,Help... 2019-11-10
- Cs 3413 Assignmentghostwriter ,Help Wi... 2019-11-10
- Linear Regression Assignmenthelp With ... 2019-11-10
- Cab202 Assignment 2, Semester 2 2019 2019-11-09
- Cab340 Assessment 3 Public-Key Encrypt... 2019-11-09
- Comp20003 Algorithms And Data Structur... 2019-11-09
- Etf5952 Quantitative Methods For Risk ... 2019-11-09
- Assignment 3: Implementation Of Pca A... 2019-11-09
- Assignment 3: Implementation Of Pca An... 2019-11-09
- Comp6714-Project (Part-1) 2019-11-09
- Mxb261 - Modelling And Simulation Scie... 2019-11-09
- Introduction To Statistical Machine Le... 2019-11-09
- 159.235 Assignment 3 - A 3D Graphics S... 2019-11-09
- Csc 360: Operating Systems 2019-11-09
- Csc 360: Operating Systems 2019-11-09
- Pbr Assignmentghostwriter ,Help With C... 2019-11-09

Contact Us - Email：99515681@qq.com WeChat：codinghelp

© 2014 www.asgnhelp.com

Programming Assignment Help！