Category: Probability & Statistics

Finding the correlation coefficient for two groups of numbers helps us to figure out how the data sets are related – and may also help us to make predictions.  Microsoft Excel can find the...

Finding the mode (or “most often seen” value) of a set of numbers helps us to find the most likely outcome in a probability distribution.  Microsoft Excel can find the mode for any set of...

Finding the median (or “middle” value) of a set of numbers is used in many contexts, including economics, population studies, and research.  Microsoft Excel can find the median for any set...

Finding the mean (or average) of a set of values is used in many contexts, including business, finance, and research.  Microsoft Excel can find the mean for any set of values you choose as...

Mr. Jackson,  a history teacher at Middletown High School, teaches two classes of College Prep United States History. Each class has 20 students. After a particularly difficult test, he presents...

Back in 1976, Ann Landers, the famous advice columnist, posed this question to parents, “if you had to do it over again, would you become a parent?” Over 10,000 people voluntarily responded to...