Data and Analytics

Choose candidate features for a churn model and check each for leakage.

• data
• choose

Clean a messy spreadsheet by standardising values, removing blanks and splitting combined fields.

• data
• clean

Reconcile two sources of the same figure and explain any remaining difference.

• data
• reconcile

Define freshness checks that alert when a dataset is older than expected.

• data
• define

Summarise an analysis for executives: the answer, the confidence and the recommended action.

• data
• summarise

Clarify and prioritise a data request by the decision it supports and the effort it needs.

• data
• clarify

Generate realistic sample data for testing that contains no real personal information.

• data
• generate

Find columns that probably hold personal data based on their names and sample values.

• data
• find

Write a data contract for a dataset covering schema, freshness, quality and ownership.

• data
• write

Review a metric definition for ambiguity, double counting and mismatched time windows.

• data
• review

Write a tracking specification that engineers can implement without guessing.

• data
• write

Plan product analytics events with names, properties, triggers and owners.

• data
• plan