What does it mean to reduce variation between samples?

Last updated: 7/8/2022

What does it mean to reduce variation between samples? Reduce variation means that one sample will have similar characteristics to another sample. Reduce variation means that whenever you gather a sample all the samples will have the exact same sample mean. Since the population is always going to vary it is impossible to reduce variation between samples. Reduce variation means that when you gather a sample mean or proportion the sample mean or proportion will consistently be to large. This is a tricky one! Remember that reduce variation means when we take a sample we want the sample from group 1 to be similar to the sample from group 2. How can you apply this concept to reducing variation?