I have installed Android Studio on my MacBook Air (OS Version 10.11 El Capitan) and have successfully written a small \"hello, world\" app and installed on device (Nexus 7)
AndroidStudioFrontScreenI simply double clicked the Android dmg install file that I saved on the hard drive and when the initial screen came up I dragged the icon for Android Studio into the Applications folder, now I know where it is!!! Also when you run it, be sure to right click the Android Studio while on the Dock and select "Options" -> "Keep on Dock". Everything else works. Dr. Roger Webster