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Learn how to calculate hazard rate, its practical implications in engineering and finance, and why it's critical in predicting survival and failure rates.

The calculator on your Apple devices can do more than add, subtract, multiply and divide. Here's how it can help you with all kinds of math problems. Details emerge about Charlie Kirk shooting suspect ...

A website announces, “Free celebrity wallpaper!” You browse the images. There’s Selena Gomez, Rihanna and Timothée Chalamet—but you settle on Taylor Swift. Her hair is doing that wind-machine thing ...