What is the difference between quantity and quality?

quantity | quality |

As nouns the difference between quantity and quality

is that quantity is a fundamental, generic term used when referring to the measurement (count, amount) of a scalar, vector, number of items or to some other way of denominating the value of a collection or group of items while quality is level of excellence.

As an adjective quality is

being of good worth, well made, fit for purpose.

is thatis a fundamental, generic term used when referring to the measurement (count, amount) of a scalar, vector, number of items or to some other way of denominating the value of a collection or group of items whileis level of excellence.being of good worth, well made, fit for purpose.

Other Comparisons: What’s the difference?Betweenquality vs Quantity

quantity

English

(wikipedia quantity)

Noun

(quantities)

A fundamental, generic term used when referring to the measurement (count, amount) of a scalar, vector, number of items or to some other way of denominating the value of a collection or group of items.

You have to choose between quantity and quality.

An indefinite amount of something.

Some soap making oils are best as base oils, used in a larger quantity”’ in the soap, while other oils are best added in a small ”’quantity .

Olive oil can be used practically in any quantity .

A specific measured amount.

This bag would normally costs $497.50 for a quantity of 250, at a price of $1.99 per piece.

Generally it should not be used in a quantity larger than 15 percent.

A considerable measure or amount.

The Boeing P-26A was the first all-metal monoplane fighter produced in quantity for the U.S. Army Air Corps.

(metrology) Property of a phenomenon, body, or substance, where the property has a magnitude that can be expressed as number and a reference.

(mathematics) Indicates that the entire preceding expression is henceforth considered a single object.

x plus ”y” quantity squared equals ”x” squared plus ”2xy” plus ”y” squared .

* 2006 , Jerome E. Kaufmann and Karen Schwitters, Elementary and Intermediate Algebra: A Combined Approach , p 89

For problems 58-67, translate each word phrase into an algebraic expression.

(…)

65. x plus 9, the quantity squared

* 2005 , R. Mark Sirkin, Statistics For The Social Sciences , p137

The second, (\sum x)^2, read “summation of x, quantity squared,” tells us to first add up all the xs to get\sum x and then square\sum x to get (\sum x)^2.

* 1985 , Serge Lang, Math!: Encounters with High School Students , p54

ANN.ra quantity cubed.

SERGE LANG. That’s right, (ra)^3.

Usage notes

* In mathematics, used to unambiguously orate mathematical equations; it is extremely rare in print, since there is no need for it there.

Synonyms

* Qty

Related terms

* quantifier
* quantify
* quantitate
* quantitative
* quantum
* quanta
* qualitas

quality

English

Noun

(uncountable) Level of excellence

This school is well-known for having teachers of high quality .

Quality of life is usually determined by health, education, and income.

(countable) A property or an attribute that differentiates a thing or person.

One of the qualities of pure iron is that it does not rust easily.

While being impulsive can be great for artists, it is not a desirable quality for engineers.

Security, stability, and efficiency are good qualities of an operating system.

(archaic) High social position. (See also the quality.)

A peasant is not allowed to fall in love with a lady of quality .

Membership of this golf club is limited to those of quality and wealth.

(uncountable) The degree to which a man-made object or system is free from bugs and flaws, as opposed to scope of functions or quantity of items.

(thermodynamics) In a two-phase liquid–vapor mixture, the ratio of the mass of vapor present to the total mass of the mixture.

(emergency medicine, countable) The third step in OPQRST where the responder investigates what the NOI/MOI feels like.

To identify quality try asking, “what does it feel like?”.

Usage notes

* Adjectives often applied to “quality”: high, good, excellent, exceptional, great, outstanding, satisfactory, acceptable, sufficient, adequate, poor, low, bad, inferior, dubious, environmental, visual, optical, industrial, total, artistic, educational, physical, musical, chemical, spiritual, intellectual, architectural, mechanical.

Synonyms

* See also

Coordinate terms

* (a property that differentiates) quiddity

Derived terms

(quality)
* human quality
* industrial quality
* quality time
* quality of life
* the quality, the Quality
* total quality management
* qualitative

Related terms

* qualify

Adjective

(en adjective)

Being of good worth, well made, fit for purpose.

We only sell quality products.

That was a quality game by Jim Smith.

A quality system ensures products meet customer requirements.

* Harriet (a Cambridge University student), quoted in John Ahier, John Beck, Rob Moore, Graduate Citizens?: Issues of Citizenship and Higher Education , Routledge (2003), ISBN 978-0-415-25722-0, page 114:

I mean a lot of the money that obviously goes into universities and their libraries and their facilities and their academics and stuff but I mean I haven’t had a very quality degree to be honest. I think the quality of my education has been crap . . .

* 2004 , Vance M. Thompson, MD, in J. Kevin Belville and Ronald J. Smith (editors), LASIK Techniques: Pearls and Pitfalls , SLACK Incorporated, ISBN 978-1-55642-622-3, page 187:

For one I wanted to have what I considered a very quality tracking device.

* 2008 , Carl Erskine, in Fay Vincent, We Would Have Played for Nothing: Baseball Stars of the 1950s and 1960s Talk About the Game They Loved , Simon and Schuster, ISBN 978-1-4165-5342-7, page 144:

A very quality ball club; that was the Braves.

Derived terms

* qualityness

Related terms

* qualia
* qualitative