It doesnt take much effort to start a convenience sampling effort. This is an easy and inexpensive way to gather initial data but there is no way to tell if the sample is representative of the population so it cant produce generalizable results. Strengths And Weaknesses Of Sampling Techniques Source Malhotra And Download Table Facebook polls or questions can be mentioned as a popular example for convenience sampling. . Multistage Sampling Introductory Guide Examples. Learn more about the definition formula and advantages of systematic random sampling and discover how when and why this type of sampling is used. You can see this type being used in public places like malls or school campuses where its easy to meet and select people as they go by based on the characteristics and criteria that you think are important. Representative sampling and random sampling are two techniques used to help ensure data is free of bias. Advant