Anna R.

A highly experienced, motivated, and hardworking individual. I'm a full-time freelancer (available throughout the day, not just evenings and weekends) with 10+ years of experience. I hold a PhD in Mathematics (Probability Theory and Statistics) and offer expertise in mathematics, statistics, data analysis, and LaTeX. I help develop mathematical curriculum and educational content, including theory, questions, and multiple-choice problems. I assist with developing: - Precalculus, Calculus I, II, III content from scratch; - GCSE exam-style worksheets; - SAT maths questions; - statistics and probability content. I also provide data analysis and statistical consulting, including: - business and sales data analysis (revenue, trends, segmentation, and business insights); - statistical analysis and A/B testing (hypothesis testing, confidence intervals, significance testing, power and sample size analysis); - predictive and quantitative analysis, including forecasting, risk analysis, and anomaly detection; - data cleaning, visualization, and reporting using Excel, Google Sheets, Python, and SQL. I focus not only on calculations and visualizations, but also on interpreting results and providing clear, practical recommendations. I am a LaTeX expert and help with: - creating slides and layouts for academic documents in LaTeX; - typesetting in LaTeX; - converting documents from Word, PDF, or other formats into LaTeX. If you have any questions, please don't hesitate to reach out. Thank you!