1. The Pearson Correlation By far the most common correlation is the Pearson correlation (or the Pearson productâmoment correlation) which measures the degree of straight-line relationship. D e f i n i t i o n The Pearson correlation measures the degree and the direction of the linearrelationship between two variables.
A core is usually the basic computation unit of the CPU-it can run a single program context (or multiple ones if it supports HW threads such as hyperthreading on intel CPUs), maintaining the correct program state, registers, and correct execution order, and performing the operations through ALUs.
All core i3 series processors have : 2 cores. All core i5 series processors have : either 2 or 4 cores. All core i7 series processors have : either 4 or 6 cores. So you can easily conclude that the named series doesnât have direct mapping with number of cores e.g. i5 series microprocessors have both 4 and 6 cores.