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Professional Certificate in Data Analysis

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Q_01 domain/d1 · medium single discuss →

A city transport authority wants to design more inclusive bus services that reflect the fact that a third more women than men use buses in the UK. Traditional survey data has under-represented women's needs. According to the passages, which approach is recommended as a rich, untapped source for capturing these needs?

A Increasing the frequency of repeated survey requests to female passengers
B Analysing web-based reviews of local bus companies and public social media posts about bus services
C Relying solely on existing male-model transport datasets already in use
D Moving all data collection exclusively onto online survey platforms

Q_02 domain/d1 · medium single discuss →

A data analyst is characterising the composition of global data volumes to plan future storage and tooling. Based on the passages, which statement best reflects the projected nature of worldwide data by 2025?

A Around 80% of worldwide data will be unstructured
B Around 80% of worldwide data will be neatly structured in relational databases
C The majority of data will come from enterprise ERP and CRM systems
D Unstructured data will decline as structured collection improves

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