Chisom Marycynthia Ofoma

Data Analyst | Supports Data-informed Decision-making

About Me

Chisom Marycynthia Ofoma

I'm a data analyst with expertise in drawing actionable insights from data to support decision-making and sustainable business growth.

I specialize in developing detailed reports that unveil trends in data and answer core business questions. This portfolio showcases my projects addressing potential business questions across various sectors using data.

My Projects

Project One Preview

High-demand Public Service Environment Analysis

Performed data analysis on service flow data (arrival rates, wait times, throughput) from NHS England A&E Attendance and Emergency Admissions to identify demand-capacity gaps and recurring bottlenecks. Used time-series and descriptive analysis to isolate peak congestion periods and resource utilization constraints.

Project Two Preview

Multi-product Commercial & Growth Decision Analysis

Analysed an e-commerce customer and product-level transactions to identify revenue-generating vs resource-draining segments and highlight growth-profit trade-offs. Applied segmentation, cohort-style, and trend analysis to evaluate retention patterns, repeat behaviour, and segment profitability.

Project Three Preview

Strategic Options & Resource Trade-off Analysis

Analysed project and budget data to compare cost vs impact, identify opportunity costs, and risk/reward trade-offs across competing initiatives. Utilized scenario analysis and weighted scoring to test assumptions and assess outcome sensitivity under different resource allocations.

Project Four Preview

Project Title Four

A brief, one or two-sentence description of your project, what it does, and the tools you used.

Technical Skillset

Data Visualization

  • Power BI
  • Tableau
  • Looker Studio
  • Excel Dashboards

Data Analysis

  • SQL
  • Advanced Excel
  • Python (Pandas)
  • Google Sheets

Data Modeling & ETL

  • Power Query (M)
  • DAX
  • Star Schema Design
  • ETL Processes

Send me a message

Interested in collaborating or have questions about my work? I'd love to hear from you!