Lesson 13 - Cleaning Data Lesson 14 - Creating Summary Tables Unit 2- Lesson 13 & 14 Lesson 13 - Cleaning Data Lesson 14 - Creating Summary Tables

Today! Complete Lessons 13 & 14 Take End of Unit 2 Test (Not for Points) Review for Test

Lesson 13 As powerful as computers are, however, they typically rely on data being in an organized and standardized state prior to performing any computation with it It is important to make sure that data is "cleaned" before performing any analysis to ensure usable and reliable results

Lesson 13 Introduction to filtering and sorting data Clean results from survey data Categorize results from survey data Complete Code.org Lesson 13

Lesson 14 A summary table is a table used to compute summary statistics of a larger dataset. Summary tables are another way that computational tools can be used to look more closely at data in order to identify trends and patterns. They can often be good data visualizations on their own

Lesson 14 Summary Table: A table that summarizes information about some larger dataset. It typically consists of performing computations like sums, averages, and counts on higher level groupings of information. The intent is to summarize lots of data into a form that is more useful, and easier to "see".

Lesson 14 Pivot Table: The tool used by most spreadsheet programs to create a summary table.

Lesson 14 Aggregation: A computation in which rows from a data set are grouped together and used to compute a single value of more significant meaning or measurement. Common aggregations include: Average, Count, Sum, Max, Median, etc.

Lesson 14 Complete Lesson 14 @ Code.org

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