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If your TI-84 shows a long list of numbers after you run 1-Var Stats, you may not know which result to use. That screen can show the mean, standard deviation, median, quartiles, minimum, maximum, and sample size all in one place. The good news is that 1-Var Stats is not hard once you know what…
A TI-84 calculator can show two different standard deviation values: Sx and σx. That is the part that confuses many students. If your homework just says “find the standard deviation,” you need to know which one to copy. In most school problems, Sx is the answer because the data is usually a sample. If the…
Finding the mean, median, and mode on a TI-84 is easy once you know where to enter your data. The TI-84 can find the mean and median with 1-Var Stats, but it does not usually show the mode directly. You can find the mode by checking which number appears most often in your list. This…