In this exercise you will learn to plot data using the ggplot2 package. To this end, you will make your own note of 4.1 Categorical vs. Categorical from Data Visualization with R.

## Observations: 1,728
## Variables: 16
## $ price           <int> 132500, 181115, 109000, 155000, 86060, 120000, 1…
## $ lotSize         <dbl> 0.09, 0.92, 0.19, 0.41, 0.11, 0.68, 0.40, 1.21, …
## $ age             <int> 42, 0, 133, 13, 0, 31, 33, 23, 36, 4, 123, 1, 13…
## $ landValue       <int> 50000, 22300, 7300, 18700, 15000, 14000, 23300, …
## $ livingArea      <int> 906, 1953, 1944, 1944, 840, 1152, 2752, 1662, 16…
## $ pctCollege      <int> 35, 51, 51, 51, 51, 22, 51, 35, 51, 44, 51, 51, …
## $ bedrooms        <int> 2, 3, 4, 3, 2, 4, 4, 4, 3, 3, 7, 3, 2, 3, 3, 3, …
## $ fireplaces      <int> 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, …
## $ bathrooms       <dbl> 1.0, 2.5, 1.0, 1.5, 1.0, 1.0, 1.5, 1.5, 1.5, 1.5…
## $ rooms           <int> 5, 6, 8, 5, 3, 8, 8, 9, 8, 6, 12, 6, 4, 5, 8, 4,…
## $ heating         <fct> electric, hot water/steam, hot water/steam, hot …
## $ fuel            <fct> electric, gas, gas, gas, gas, gas, oil, oil, ele…
## $ sewer           <fct> septic, septic, public/commercial, septic, publi…
## $ waterfront      <fct> No, No, No, No, No, No, No, No, No, No, No, No, …
## $ newConstruction <fct> No, No, No, No, Yes, No, No, No, No, No, No, No,…
## $ centralAir      <fct> No, No, No, No, Yes, No, No, No, No, No, No, No,…

Q1 Stacked bar chart Plot the relationship between newContruction and heating type.

Q2 What is the most common heating system overall? Discuss your reason.

Hot air. The newly constructed homes are more likely to use hot air heating systems based on the results of the graph.

Q3 Grouped bar chart Plot the relationship between newContruction and heating type.

Q4 Segmented bar chart Plot the relationship between newContruction and heating type.

Q5 In which type of houses (new or old) is the proportion of hot air heating system higher? Discuss your reason.

Newly constructed houses have a higher proportion of hot air heating systems. The proportion of older homes that use hot air heating systems is .55, whereas the proportion of newer homes using hot air heating systems is closer to 1.00.

Q6 Rename the construction type as new and old.

Q7 Add labels to the axes.

Q8 Hide the messages and the code, but display results of the code from the webpage.

Q9 Display the title and your name correctly at the top of the webpage.

Q10 Use the correct slug.