Centrality and Variance 0.0 / 5 ? PsychologyStatisticsUniversityNone Created by: smiith210Created on: 30-03-21 15:28 What is the formula for the mean? Add up all the scores then divide by the number of scores 1 of 5 What is the formula for the sample variance? Caluclate the deviations from the mean, square them, divide the total of squared deviations from the mean by one less than the number of scores 2 of 5 What is the formula for the sample standard deviation? The square root of the sample variance 3 of 5 What does a big variability indicate? Large set of varied scores, the bigger the sample, the smaller the variance 4 of 5 What is the interquartile range? 75%-25% 5 of 5
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