dataZ4s.com is my Freelance Consultancy where I offer services as Statistician & Data Analytics. dataZ4s.com is an outspring of my other Freelance Consultancy, Contacto.dk, which I launched 2010. Freelance for 12 years. Master’s Level in Mathematical Statistics. Ph.D. student assistant . HD degree at Copenhagen West. +15 years helping companies and organisations with data, sales and business development. DESCRIPTIVE & INFERENTIAL STATISTICS Hypothesis tests and significance tests, Confidence intervals , Type I and II errors, Power of test, Sample size calculations, Chi-Square tests (Goodness of fit, homogeneity, independence, population variance), One and two way ANOVA. REGRESSION ANALYSIS Linear, Logistic, Multinomial Logistic, Multiple Linear, Ordinal, Nonlinear… MATHEMATICS Algebra and Calculus: Limits and continuity, differential calculus, derivatives as slope of tangent line, polynomial functions differentiation, ex and In(x) derivatives, logarithmic differentiation, etc. PROGRAMMING RStudio, Python, SQL, VBA SALES + STARTUPS + PROJECT MANAGEMENT My journey to Data Science and Mathematical & Statistical programming has been through sales and start-up of new businesses: - Startup of my Freelance Consultancy, dataZ4s.com - Startup of my Freelance Consultancy, Contacto.dk - Startup of Scandinavians Largest Real Estate Agency in Spain - Startup of On- & Offline Medias - Startup of Daughter Subsidiary of CEO in VESTAS A/S (VTP Group) - Startup of Danish IT & Cloud Services Company in Malaga - Startup of Daughter Subsidiary, VELUX ARGENTINA SA