Mean. The mean of an observation variable is a numerical measure of the central location of the data values. It is the sum of its data values divided by data count. Hence, for a data sample of size n, its sample mean is defined as follows:Similarly, for a data population of size N, the population mean is:ean. The mean of an observation variable is a numerical measure of the central location of the data values. It is the sum of its data values divided by data count. Hence, for a data sample of size n, its sample mean is defined as follows:
Names of territorial origin were common, a man would have had the surname Langford if he was from the village of Langford. An example of this is Osm' de Langeford who was recorded in the Pipe Rolls for Wiltshire in 1130. The name Osm' de Langeford means Osm' from the village of Langford.
HlÄf survives in Lammas, originally HlÄfmaesse, Loaf-Mass, the Christian Feast of the First Fruits, traditionally celebrated on August 1. Lord comes from Old English hlÄford, a compound meaning loaf-ward, keeper of bread, because a lord maintains and feeds his household and offers hospitality. Similarly, lady derives from Old English hlÇ£fdige, which became lady by 1382. The-dige comes from daege, dÃ¦ge, kneader and is related to our. dough