The correlation coefficient is a measurement of association between two random variables. While its numerical calculation is straightforward, it is not readily applicable to non-parametric statistics. For example, in the data set survey, the exercise level (Exer) and smoking habit (Smoke) are qualitative attributes.
Mast means a collection of nuts used as food for pigs. An example of mast is a pile of beech nuts in the forest. The definition of a mast is a tall pole used for support of the sails on a boat. An example of a mast is the pole that holds up the sails and radar on a ship.
A mast radiator is a radio tower or mast in which the whole structure works as an antenna. It is used frequently as a transmitting antenna for long or medium wave broadcasting. Structurally, the only difference is that a mast radiator may be supported on an insulator at its base. In the case of a tower, there will be one insulator supporting each leg.