Ohio Assessments for Educators (OAE) Middle Grades Science (OAE 029) Practice Exam

Standard deviation is a statistical measure that quantifies the amount of variation or dispersion in a dataset. Specifically, it indicates how much individual data points deviate from the mean of the dataset. A low standard deviation suggests that the data points tend to be close to the mean, while a high standard deviation indicates that the data points are spread out over a wide range of values. Understanding the dispersion is crucial in various fields, as it provides insights into the reliability and variability of the data being analyzed. This understanding aids in making informed decisions based on how consistent or variable a dataset is.