![]() ![]() So let's talk about the median, mode and range! What is the Median? ![]() Often a strategy to avoid this shifting is to throw away outliers (for example, to not include the top or bottom scores in earned by our classmates) when calculating the mean, so that the average is more closely associated with a larger number of students.Īnother way to help understand the effect of these outliers on the mean value is to consider other measurements. ![]() You'll often find, especially when the number of samples being compared is small, that there are one or two values that can be extremes and that can have a larger effect on the mean, shifting it up or down more than you might expect. That number would be the mean test score for that class, and you could compare your score to see whether you were above or below it to tell if you did (generally speaking) better or worse than your classmates. If you're a student in this class, you could sum everyone's score and then divide it by the number of students who took the test. We calculate the mean by adding up all the values in the set, then dividing by the count of numbers in the set.Ī good example of this is figuring out what the average score for all the students who took a test in a class. The value you often call the 'average' is more correctly called the arithmetic mean. So what do the terms mean, median, mode and range actually mean? And how do we calculate them? Let's find out! What is the Mean? If you're just entering 6th grade, you'll need to be ready for these statistical comparisons! The mean, median, mode and range are all statistical values that make talking about a whole list of numbers easier. We deal with lists of numbers frequently, and we often need to summarize those lists in a way that makes comparisons easy. ![]()
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