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Menyajikan Data dengan Diagram Lingkaran

Analisis kecepatan unduh WiFi menggunakan estimasi titik, interval kepercayaan, margin of error, serta pembahasan Galat Tipe I dan Galat Tipe II.

This analysis downloads daily adjusted prices for AAPL, MSFT, GOOG, AMZN, TSM, and NVDA from 2024 to the present, calculates daily simple returns, displays the first five returns for each stock, and provides summary statistics and return plots. Because the data are downloaded using `Sys.Date()`, re-knitting the document updates the analysis automatically through the current date.