Z distribution is also called normal distribution or bell-shaped distribution; unimodal, symmetrical, most scores clumped in the center, few scores far away from center; this is a frequently used probability distribution; the shape of the z distribution follows the empirical rule.
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normal distribution
Normal distribution is unimodal, symmetrical, mostly scores clumped in the center, few scores far away from center; also known as bell-shaped distribution; this is a frequently used probability distribution; the shape of the normal distribution ...
critical z score
Critical z score is the distance between the boundaries of the "unlikely" area for a normal distribution and the mean of that distribution expressed in number of standard deviations; for example, if we assume a sampling distribution is normal, the ...
z score
A z score represents the number of standard deviations a score is above (if positive) or below (if negative) the mean.
distribution
Distribution is the pattern of variation in a variable or set of variables.
distribution triad
Distribution triad means sample distribution, DGP/population distribution and sampling distribution.