Do we want more or less variability in our data? Explain.© BrainMass Inc. brainmass.com October 9, 2019, 6:15 pm ad1c9bdddf
Please see below why variability is important as asked in your question. Also, please see the attached pdf.
Central Limit Theorem defines the confidence intervals and the range in a bell curve, where the symmetrical shape indicates that the data is evenly split at both ends, around the mean range.
The larger the sample size, bigger the variability range and eventually in an average ...
This solution discusses variability in psychology research, using the Central Limit Theorem.