
Explore core business statistics concepts, from descriptive statistics to data cleaning, and learn how data types, including categorical, numerical, and text, shape tabular data analysis after the ETL process.
Compare quantitative and qualitative data, outlining nominal, ordinal, and binary types with examples like gender, blood group, and grades, and explain discrete versus continuous variables.
Explore central tendency with mean, median, and mode, and compare geometric, harmonic, and weighted means across data types to inform real-world statistics and machine learning feature engineering.
Explore absolute and relative measures of dispersion, including range, variance, standard deviation, quartile deviation, quartiles, and mean absolute deviation, plus their use in outlier detection and data comparison.
Compare population and sample data, mean, median, and variance. Demonstrate how sampling means approach a Gaussian distribution under the central limit theorem.
Explore sampling concepts and z-scores to normalize data, connect the central limit theorem to Gaussian and uniform distributions, and support data analytics, EDA, and machine learning workflows.
Learn to perform t-tests (including one-sample tests), compute confidence intervals and p-values, and apply ANOVA, while exploring correlations with heatmaps using Seaborn penguin data.
Explore the Pearson correlation coefficient, its link to covariance, and how to compute probability values. See how sepal length and petal length on the iris dataset reveal correlation versus causation.
Explore hypothesis testing concepts with a business example, defining null and alternative hypotheses. Understand type one and type two errors, p-values, test statistics, and qq plots for gaussian distributions.
Explore data cleaning and preprocessing techniques on health data using histograms, box plots, interquartile range, and outlier detection to improve understanding of diagnosis and radius-related features.
Visualize data distributions with histograms and cumulative distribution functions, identify outliers, and describe data with mean, standard deviation, variance, and quantiles using Pandas; explore univariate, bivariate, and multivariate relationships.
Explore handling high correlation with heat maps and Pearson correlation using covariance for area mean and radius mean; apply hypothesis testing, p-values, z-scores, and histograms.
Explore practical exercises on Pearson correlation and hypothesis testing using real-world healthcare data. Analyze distributions, box plots, outliers, and correlation matrices to draw data-driven conclusions.
Applied Statistics: Real World Problem Solving is a comprehensive course designed to equip you with the statistical tools and techniques needed to analyze real-world data and make informed decisions. Whether you're a business analyst, data scientist, or simply looking to enhance your data analysis skills, this course will provide you with a solid foundation in applied statistics.
Key Topics Covered:
Introduction to Business Statistics: Understand the basics of data types and their relevance in business, along with the differences between quantitative and qualitative data.
Measures of Central Tendency: Learn about mean, median, and mode, and their importance in summarizing data.
Measures of Dispersion: Explore standard deviation, mean deviation, and quantile deviation to understand data variability.
Distributions and the Central Limit Theorem: Dive into different types of distributions and grasp the central limit theorem's significance.
Sampling and Z-Scores: Understand the concepts of sampling from a uniform distribution and calculating Z-scores.
Hypothesis Testing: Learn about p-values, hypothesis testing, t-tests, confidence intervals, and ANOVA.
Correlation: Study the Pearson correlation coefficient and its advantages and challenges.
Advanced Statistical Concepts: Differentiate between correlation and causation, and perform in-depth hypothesis testing.
Data Cleaning and Preprocessing: Master techniques for cleaning and preprocessing data, along with plotting histograms and detecting outliers.
Statistical Analysis and Visualization: Summarize data with summary statistics, visualize relationships between variables using pair plots, and handle high correlations using heat maps.
What You'll Gain:
Practical Skills: Apply statistical techniques to real-world problems, making data-driven decisions in your professional field.
Advanced Understanding: Develop a deep understanding of statistical concepts, from basic measures of central tendency to advanced hypothesis testing.
Hands-On Experience: Engage in practical exercises and projects to solidify your knowledge and gain hands-on experience.
Who This Course Is For:
Business Analysts: Looking to enhance their data analysis skills.
Data Scientists: Seeking to apply statistical techniques to solve complex problems.
Students and Professionals: Interested in mastering applied statistics for career advancement.
Prerequisites:
Basic Understanding of Mathematics: No prior programming experience needed.
Interest in Data Analysis: A keen interest in learning how to analyze and interpret data effectively.
By the end of this course, you will be equipped with the skills and knowledge to tackle real-world data problems using applied statistics. Enroll now and take the first step towards becoming proficient in statistical analysis!