Adam Lawal

This concept is easy to overlook, but it powers everything from covariance to correlation. Variance Variance, litereally means the quality or state of being divergent or inconsistent. Mathematically, variance takes that abstract concept of “inconsistency” and turns it into a concrete, measurable number. Formula for sample variance where n is the number of samples and x̄ is the mean of the random variable x. Inconsistency? How exactly can the data be inconsistent? Before you can measure how inconsistent s...

Executive Summary This report is the story of how I moved from raw Lagos listings to a cleaner picture of the market. I started with the sourced data, cleaned it, removed duplicated listings, standardized the key fields, and then used the notebook to look for the patterns that matter most: price, location, property type, segmentation, and listing concentration. The main thing that stood out early was that this is not a flat market. It is a layered one. A handful of locations carry most of the listings, b...

A/B Test on Headline Sentiment & Engagement This report explores whether the sentiment of article headlines affects engagement. Using real-world data pulled via the Reddit API (PRAW), I performed an A/B test where posts were grouped based on the sentiment of their titles — positive (Group A) vs. negative (Group B) — using VADER sentiment analysis. Summary With a mean score of 7,848 votes and an average of 1,175 comments across the dataset, the A/B test reveals a key performance indicator across posts. Am...