Answer:
Step-by-step explanation:
-5x + (x -1) = -21
-4x = -20
x = 5
-1/4 is between -2/6 and -1/6
Answer:
Design of Experiments Basics
Design of experiments (DOE) is a systematic method to determine the relationship between factors affecting a process and the output of that process. In other words, it is used to find cause-and-effect relationships. ... An understanding of DOE first requires knowledge of some statistical tools and experimentation concepts.