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AP Psychology
Multiple Choice

Understanding Standard Deviation in Data Distribution

Medium Unit 1: Scientific Foundations Statistical Analysis

In psychological research, it is essential to quantify and analyze data to draw meaningful conclusions. One of the statistical tools widely used is the standard deviation, which measures the extent to which scores in a distribution deviate from the mean. A researcher collected test scores from a sample of students and calculated the mean to be 75 with a standard deviation of 10. Given this information, what can we deduce regarding the distribution of scores relative to the mean?

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