ビジネスのための実践的データ分析

Carina Olsen NO 認証済み受講者

★ 5 · 2025-10-25T17:48:52+00:00

I came in knowing almost nothing about data and left actually understanding how to turn messy numbers into a decision. The sections on cleaning data and spotting bad records saved me hours at work, because I used to trust spreadsheets that were full of duplicates. What really clicked was learning to ask the right question before touching the data, instead of just making charts for the sake of it. I now pull our monthly sales figures and tell a clear story to my manager. Everything was explained in plain language with real business examples. Honestly one of the most practical things I've studied.

Karen Jensen DK

★ 5 · 2025-10-02T10:55:45+00:00

What sold me on this was how grounded it stayed in actual business problems rather than abstract theory. I learned to clean a dataset properly, build a simple summary, and interpret what the numbers were really telling me about customer churn. Before this I'd just stare at a table and guess; now I have a repeatable process for collecting and checking data first. The pacing was perfect for someone starting from zero, and each idea built on the last. I've already used the interpretation framework to back up a proposal at work, and it landed well. Genuinely changed how I approach decisions.