Sabrina's Digital Portfolio
Quarter 1 TEKS Report - Matplotlib/Pandas

Python’s statistical packages are used to examine correlations and central tendency of data to identify factors that most affect student mastery of the tested TEKS.


Cubic Test Analysis - RStudio

Analysis of subgroups of students using ggplot2 and non-parametric hypothesis testing to identify low performing groups needing reteach.


Sales Data Analysis Dashboard - Power BI

This Power BI project was completed as part of my graduate coursework in data analysis. It explores sales performance across multiple product categories — including Clothing, Home & Kitchen, Health & Beauty, and Sports & Outdoors — using a simulated dataset modeled after a large retail company. The dashboard provides dynamic visualizations to explore:
Total sales by category and subcategory
Monthly sales trends
Category performance comparison
Interactive filters
The report was built end-to-end in Power BI Desktop, including data cleaning, transformation, modeling, and visual storytelling.