Data Analysis · Level 1

## 1.1 Exploring Data Visually

Build a solid foundation in data analysis with visualizations and data transformations.

Make Decisions with Data

Analyze Continuous Variables

Practice Analyze Continuous Variables

Make Comparisons

Practice Make Comparisons

Filter Data

Practice Filter Data

Group and Aggregate Data

Practice Group and Aggregate Data

Transform Data

Practice Transform Data

Explore Relationships

Practice Explore Relationships

Compare Distributions

Practice Compare Distributions

Analyze Time Series

Practice Analyze Time Series

### Course description

Answer data analysis questions with summary statistics from visualizations such as box and whisker plots, line graphs, scatterplots, bar charts, and histograms. Apply data transformations such as filter and groupby to analyze data. Use visualizations to represent and communicate about data effectively. Decide which plot type to use based on the data type that you have. Learn when and how to implement logarithmic scales (as opposed to linear ones) to best represent the story your data tells.

### Topics covered

• Bar charts
• Pie charts
• Line graphs
• Scatterplots
• Histograms
• Box and whisker plots
• Linear and Logarithmic scales
• Summary statistics
• Distributions
• Filter
• Groupby
• Aggregate

### Prerequisites and next steps

You should be comfortable with calculating percentages. Knowledge of how to calculate the mean, median, and mode is beneficial though it is covered briefly in the course.

Up next

Data Analysis · Level 1

### 1.2 Case Study: Unlocking Rental Value on Airbnb

In this case study for Exploring Data Visually, you’ll use visualizations to analyze Airbnb data and find the best neighborhoods to buy a rental property.