From the course: Statistics Foundations 1: The Basics
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Special circumstances - Microsoft Excel Tutorial
From the course: Statistics Foundations 1: The Basics
Special circumstances
- [Instructor] Mean, median, and mode, they're all helpful in understanding a data set, and they're all fairly easy to find or calculate. So, let's look at another data set to test our emerging statistics skills. Here's a bigger dataset. I'm an exercise file 02_03_Begin. A professor gave an exam to her class. These are the 20 exam scores. First, let's find the mode. If you look through the data set, you'll notice that no two students earned the same score, therefore, this data set does not have a mode. In case you were wondering what would happen if two students had a 90 and another two students had an 80, in that case, the data set would have two modes. This type of data set would be referred to as bimodal. So yes, a data set can have one mode, multiple modes, or as we saw in our data set, no mode at all. Next, let's find the median. Notice there are 20 values in our data set. So the middle value is the quantity n plus 1…
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