= 12. Semi-Interquartile Range. The semi-interquartile range of a distribution is half the difference between the upper and lower quartiles, or half the interquartile range. Therefore, from the example above, it was determined that the interquartile range = 12.
Electronic Viewfinders (EVFs) An EVF is basically a very small screen inside a viewfinder, so you can put your eye up to the viewfinder and use it like a traditional camera. On most cameras with EVFs you can switch the view between the viewfinder and the rear LCD screen interchangeably.
It's a concept that wasn't exactly new to photographyârangefinder cameras like the Leica M (Typ 240), a digital camera based on a 35mm system that has had very few changes in design since the 1950s, offer fixed optical viewfinders and a mechanical mechanism for focusing based on the distance from your subject.