Q: Is Efficiency the ability to avoid wasting materials? ¶
A: Yes, and energy, efforts, money, and time in doing something or in producing a desired result.
Q: Is Efficiency very often confused with effectiveness? ¶
A: Yes.
Q: Is Efficiency doing things right? ¶
A: Yes, effectiveness is getting things done.
Q: Is Efficiency doing things right? ¶
A: Yes, while effectiveness is doing the right things.
Q: Is Efficiency often measured as the ratio of useful output to total input? ¶
A: Yes, and which can be expressed with the mathematical formula r=P/C, where P is the amount of useful output produced per the amount C of resources consumed.
Q: Is Efficiency a measurable concept? ¶
A: Yes, and quantitatively determined by the ratio of useful output to total input.