1. a print produced by lithography. 2. duplicator that prints by lithography; a flat surface (of stone or metal) is treated to absorb or repel ink in the desired pattern. Familiarity information: LITHOGRAPH used as a noun is rare. â¢ LITHOGRAPH (verb).
1 The P-value is the probability of observing a sample statistic as extreme as the test statistic. 2  Since the test statistic is a t-score, use the t Distribution Calculator to assess the probability associated with the t-score, given the degrees of freedom computed above.
A Z-score measures the number of standard deviations an observation is away from the mean, or average, of all observations. A positive Z-score indicates the observed value is above the mean of all values, while a negative Z-score indicates the observed value is below the mean of all values. [1] Business.