![statistics - Calculating number of standard deviations that contain $x$ percent of data - Mathematics Stack Exchange statistics - Calculating number of standard deviations that contain $x$ percent of data - Mathematics Stack Exchange](https://i.stack.imgur.com/4o1Ex.png)
statistics - Calculating number of standard deviations that contain $x$ percent of data - Mathematics Stack Exchange
![For a bell curve with mean 7 and standard deviation 3, how much area is under the curve, above the horizontal axis, and between x = 2.5 and x = 11.5? | Socratic For a bell curve with mean 7 and standard deviation 3, how much area is under the curve, above the horizontal axis, and between x = 2.5 and x = 11.5? | Socratic](https://useruploads.socratic.org/LPFePabTSRqy65hyjOzD_media%252F5dd%252F5dd967b8-33d6-49a6-b30f-161997ab5d81%252FphpM6B8Sq.png)
For a bell curve with mean 7 and standard deviation 3, how much area is under the curve, above the horizontal axis, and between x = 2.5 and x = 11.5? | Socratic
![8.08 Standard normal distribution (using tables) | AFDA Math | Virginia SOL Algebra, Functions, and Data Analysis - 2020 Edition | Mathspace 8.08 Standard normal distribution (using tables) | AFDA Math | Virginia SOL Algebra, Functions, and Data Analysis - 2020 Edition | Mathspace](https://mathspace-production-media.mathspace.co/media/upload/media/upload/images/11-Normal-Distribution/z-chart-updated.png)