can you have a constant mean across the entire data set can you have different mean across different distributions? can you find constant mean across data can you measure the variability of the mean across different groups of data? can you have constant mean across a sample of data can you have constant means across data samples from different distributions which variable has the least constant mean can you have constant mean across different samples what is the means of variables can you have constant mean across multiple distributions can a random sample have constant mean can you measure a variable by its mean can you have constant mean across different distributions can you find constant mean across different distributions can you have a constant mean across different distributions? can you have a constant mean across samples can you have constant mean across different distributions does mean mean constant across samples can constant mean across different data sets can you have the same constant across multiple distributions?