Statistical significance considers the first and third of these concerns. The middle one, bias, cannot be detected by mathematical deductive logic: it needs detailed information on the way the sample was chosen. This is dealt with in the notes on bias.
A HEIC file is a raster image saved in the High Efficiency Image Format (HEIF), a lossy compressed format. It may contain still images, image collections, image bursts, or image sequences, along with metadata that describes each image. HEIC files may also appear as .HEIF files.
HEVC, HEIC, and HEIF files on iOS devices With iOS 11, Apple added an option to compress photos and videos with a new, more efficient encoding called HEVC. By default, iOS devices with A9 and newer processors will capture images and video using HEVC compression. Image files: saved in a new HEIF format, with extension â.heicâ instead of â.jpgâ Video files: still saved with extension â.mov,â but encoded differently; The following iOS devices use A9 and newer processors: iPhone 7 or newer; iPad Pro