Final answer:
The stdev command in statistics calculates the standard deviation of a data set, which measures the spread of values from the mean. It helps determine how much variation is present in the data.
Step-by-step explanation:
The stdev command in statistics is used to calculate the standard deviation of a data set. The standard deviation measures how spread out the values in a data set are from the mean. It gives an idea of how much individual data points in the set vary from the average.
To calculate the standard deviation, you can use a calculator or computer software. By finding the square root of the variance, which is the average of the squared differences from the mean, you can determine the standard deviation. The standard deviation provides a measure of the overall variability of the data set, indicating whether the data values are close to or far from the mean.