Ever been told you’re “in the top ten percent,” only to have no idea what that will do to your score? For some reason, percentiles … Read More

Imagine I give you a coin and ask you to hold it in your hand. You know it will land heads or tails, but you … Read More

Take a standardized test and score an eighty-five. You may be feeling decent about yourself until you see that the class average was seventy, with … Read More

A measure of standard deviation can be quite helpful when analyzing data. If you went to school, then perhaps you recall learning about standard deviation, … Read More