NYC DOB data

You may access my repository by clicking the link below. https://github.com/YKICho/Yung_QC

The analysis of the MtCars dataset explores key relationships among variables such as miles per gallon (mpg), number of cylinders, horsepower, and transmission. The first analysis identifies how fuel efficiency varies across different vehicle characteristics, suggesting that cars with fewer cylinders tend to have higher mpg. While heavier vehicles and those with higher horsepower exhibit lower fuel efficiency. By categorizing the dataset based on cylinder count, the study confirms a strong negative correlation between horsepower and fuel efficiency. The analysis also examines the impact of transmission type (automatic 0 vs. manual 1) on mpg, suggesting that manual cars may have a slight edge in efficiency. Overall, the results align with expectations that a vehicle with a 4-cylinder engine and a 5-speed manual transmission is the most fuel-efficient.

The Titanic data analysis explores the impact of various factors on passenger survival rates. First-class passengers had a much greater likelihood of survival at 64% compared to those in second and third class at 47% and 24%. Additionally, the findings show that women and children had significantly higher survival rates, consistent with the “women and children first” policy of the times. The analysis also highlights fare price variations and their correlation with survival. Female passengers paid an average of 19 pounds more compared to male passengers, and first-class passengers paid an average of 84 pounds more compared with 13 pounds, which was the average fare for third-class passengers.This finding could emphasize the economic disparities in survival outcomes. Further statistical analyses and visualizations provide insights into the relationships between passenger demographics and survival probability. First and second class female passengers had a survival rate of 97% and 92%. However, male passengers in third class recorded a survival rate of just 14%. Visual plots confirm that gender and class were the most significant predictors of survival. These findings align with historical records of the Titanic disaster, reinforcing the social and economic factors that influenced survival chances.

Test doc