Comments are off. Positive Correlation: The correlation in the same direction is called positive correlation. If one variable increase other is also increase and one variable decrease other is also decrease. For example, the length of an iron bar will increase as the temperature increases. Negative Correlation:
Process engineers use chemistry principles to design and maintain chemical processes for manufacturers. Many large chemical and manufacturing plants convert raw materials into products.
What Computer Hardware Engineers Do. Computer hardware engineers research, design, develop, and test computer systems and components such as processors, circuit boards, memory devices, networks, and routers. These engineers discover new directions in computer hardware, which generate rapid advances in computer technology.