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U.S. Average Retail Gasoline Prices Regular Gasoline Price … National Average (GASREGW) Based on the most recent data from the U.S. Energy Information Administration (EIA), here’s an explanation of GASREGW (Regular Gasoline Price National Average): What GASREGW Means GASREGW is the official designation for tracking regular-grade gasoline prices across the United States It represents a weighted average based on sampling from approximately 900 retail outlets Prices are collected at 8:00 AM Monday each week The price includes all taxes and represents self-service unless only full-service is available Technical Specifications Regular Gasoline must have an antiknock index (average of research octane rating and motor octane number) greater than or equal to 85 and less than 88 Octane requirements may vary by altitude Prices are reported in dollars per gallon, not seasonally adjusted

The focus of Project 2 is to practice the R packages tidyr and dplyr to prepare three different datasets for downstream analysis. Data Tidying and Transformation, incorporating your existing data-cleaning code and adding two important techniques: 1. Window functions: row_number(), min_rank(), dense_rank(), percent_rank(), lag(), lead(), and cumsum(). 2. Feature engineering: Creating new variables from existing variables to support downstream statistical analysis. The code works with your three datasets: AI Usage, College Majors, and Student Dropout Risk. Because the actual column names have not been provided, the code uses numerical variables that exist in each dataset rather than assuming specific columns are available.