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Sources of data (primary and secondary)
Data collection methods (surveys, web scraping, APIs)
Data cleaning techniques (handling missing values, outliers,
inconsistencies)
Data wrangling and transformation
Importance of data visualization
Basic data visualization tools (Excel, Google Sheets, Tableau,
Python libraries like Matplotlib, Seaborn)
Creating various types of charts (bar charts, line charts, pie
charts, histograms, scatter plots)
Choosing the right visualization for different types of data
Measures of central tendency (mean, median, mode)
Measures of dispersion (variance, standard deviation,
range)
Distribution of data (normal distribution, skewness,
kurtosis)
Summary statistics
Basic probability concepts (probability rules, conditional
probability)
Hypothesis testing (null hypothesis, alternative hypothesis,
p-value, confidence intervals)
T-tests, Z-tests, ANOVA
Chi-square test
Simple linear regression
Multiple linear regression
Model evaluation (R-squared, adjusted R-squared, p-values)
Interpretation of regression coefficients
Time series components (trend, seasonality, cycle, noise)
Forecasting techniques (moving averages, exponential
smoothing, ARIMA)
Evaluating forecasting models
Introduction to data mining and machine learning
Supervised learning (classification, regression)
Unsupervised learning (clustering, dimensionality
reduction)
Common algorithms (decision trees, random forests, support
vector machines, k-means clustering)