Compare means to say what is alike between one or more things. Contrast is to say what is different between them.
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No, don't use a single t-test to compare the means of 3 or more groups. Use ANOVA.
It means to compare and check the difference of a shape. Like whats the same and different.
(of an adjective or adverb) expressing a higher degree of a quality, but not the highest possible (e.g., braver; more fiercely).Positive Comparative Superlativesimple simpler simplestsilly sillier silliestwhite whiter whitestclear clearer clearesteasy easier easiest
A single mean is used in testing to compare a single variable to a population mean in order to determineÊif there is aÊdifference. Two means are used in testing to compare two populations to see if there are variances between the two variables.Ê
It means that you take the absolute values of different numbers, and then compare them to see which one is greater.