# Statistics-measures of central tendency and variation

Understanding descriptive statistics, their measures of center and their variability, helps form the foundation of statistical analysis. Descriptive statistics tell us how frequently an observation occurs, what is considered average, and how far data in our sample deviate from being average. With these statistics, we are able to provide a summary of characteristics from both large and small datasets. Measures of central tendency and variability provide valuable information on their own, and form the cornerstone of the quantitative structures that we build in our research studies.

For this Discussion, you will examine central tendency and variability in terms of pulse rate…

(56, 60, 62, 62, 64, 64, 64, 68, 72, 78-pulse rate of 10 of my colleague)

Find and record the pulse rate of 10 different people where you work. Tell us a little about the population from which you drew your data. Describe your findings in terms of central tendency and variability.

(population of 4 men & 6 women, ages 23-62, medical professional)