Introductory Statistics | Using a z-Score | Practice Problem

In this video, we flip the script on standardizing data by Using a z-Score to work backward and find a raw value. Instead of calculating the z-score, we start with it and translate it back into an actual data point! You’ll learn how to rearrange the z-score formula into the "Reverse Formula" to solve for x. By multiplying the z-score by the standard deviation and adding it to the mean, you can pinpoint exactly where a data point sits in its original units. This is a vital skill for anyone needing to deconstruct statistical reports or understand personalized data feedback. ADDITIONAL RESOURCES: 📝 Practice this problem: https://www.myopenmath.com/embedq2.php?id=431028 📺 Watch the full video lecture: https://youtu.be/EjpIDcEGOiI 📖 Read the lecture notes: https://math.libretexts.org/Courses/Mt._San_Jacinto_College/Interactive_Lecture_Notes_for_Introductory_Statistics 🎙️ Listen to "Chats about Stats" Podcast on Spotify: https://open.spotify.com/episode/0jnpL2nT7M98HTch28T0Rn?si=9dVpv-BLSM2zyq9MrqzPAA