From Wikipedia, the free encyclopedia

Normality may refer to:

• The property of conforming to a norm; see normal (behavior), assimilation (sociology);
• In chemistry, normality is a measure of concentration: it is equal to the number of gram equivalents of a solute per liter of solution.
• In mathematics, a normal number is, roughly speaking, a real number whose digits show a random distribution with all digits being equally likely.
• Also in mathematics, a surface normal is a line perpendicular to a surface.
• In probability theory and statistics: sampled from a normal distribution.
• Normality is an adventure video game by Gremlin Interactive.
• Normality is a tabletop roleplaying game by Hugh Dingwall and Vishãla Jekic.

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From Wikiquote

Quotes about normality

Unsourced

• "Normality is the insanity of the masses." ~ Fredrik Nerbrand
• "If everyone was normal, there'd be no art." ~ Anonymous
• "Normality is in the eye of the beholder." ~ Anonymous
• "Everyone is just as normal and fucked up as everyone else." ~ Dave Grohl
• "Nobody realizes that some people expend tremendous energy merely to be normal." - Albert Camus

Dr. Cameron: Is it so wrong for them to want to have a normal child? It's normal to want to be normal.

Dr. House: Spoken like a true circle queen. See, skinny, socially privileged white people get to draw this neat little circle. And everyone inside the circle is "normal". Anyone outside the circle needs to be beaten, broken and reset so that they can be brought into the circle. Failing that, they should be institutionalized. Or even worse - Pitied.

External links

Wikipedia has an article about:

Normality

Look up normality in Wiktionary, the free dictionary

From Wikiversity

Histograms

Some normal distributions with various parameters.

Normal probability plots

A normality probability plot - data falling around this straight indicates the degree of departure from normality. For more information, see * Q-Q plot

Symbols

1. Population mean = μ (Mu)
2. Population variance = σ² = (Sigma squared)

Descriptive indicators of normality

• Skewness
• Kurtosis

Inferential tests of normality

• Kolmogorov-Smirnov test
• Shapiro–Wilk test

Dealing with non-normality

Transformations

• Standardise data in SPSS

Non-parametric statistics

• Non-parametric statistics