Standard Deviation

Standard deviation is a statistical measure that indicates the amount of variation or spread in a set of data. It is a measure of how far the data points are from the mean or average value of the data set. A small standard deviation indicates that the data points are tightly clustered around the mean, while a large standard deviation indicates that the data points are more spread out from the mean. Standard deviation is useful in a variety of fields, including finance, physics, and psychology, and it is commonly used to assess the consistency and reliability of data sets. It is also used to calculate confidence intervals and to perform hypothesis testing in statistical analysis. This document includes exercise questions to test your skills and understanding of Standard Deviation.