Backhoe by a backhoe or similar construction activity. The term is a play on other types of signal loss, especially on wireless networks. Most of these cause a reduction in the signal, such as rain fade. A cable subjected to "JCB fade" is instead a sudden and initially inexplicable loss of signal experienced when a cable is accidentally dug up and damaged or cut. Backhoe A backhoe — also called rear actor or back actor — is a type of excavating equipment, or digger, consisting of a digging bucket on the end of a two-part articulated arm. It is typically mounted
Sum of normally distributed random variables Sum of normally distributed random variables In probability theory, calculation of the sum of normally distributed random variables is an instance of the arithmetic of random variables, which can be quite complex based on the probability distributions of the random variables involved and their relationships. This is not to be confused with the sum of normal distributions which forms a mixture distribution. If "X" and "Y" are independent random variables that are normally distributed (and therefore also jointly so), then their sum is also normally distributed. i.e., if then This means that the sum of two independent normally distributed random