Save. Easy_Company/iStock/Getty Images. Setting up a specially designed and dedicated war room where work groups can collaborate with a minimum of distraction is one of the best steps a business owner can take to improve the group's focus and productivity.
A polygraph, popularly referred to as a lie detector, measures and records several physiological indices such as blood pressure, pulse, respiration, and skin conductivity while the subject is asked and answers a series of questions.
Quick Answer. The purpose of a frequency polygon is to communicate the shape of distributions. The purpose is similar to that of a histogram but is preferable when it comes to providing data comparisons. Those needing to display cumulative frequency distributions also find frequency polygrams to be more helpful.