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Welcome to the guide on Averages
Please note this topic is a big differentiator in getting a high score
This is an introductory where you will learn about the definition of, finding, and real world examples of the mean, median, and mode of a data set. There are no prerequisites for this course, as it is mostly about adding and subtracting!
What is a mean?
Definition: “In this form, the mean refers to an intermediate value between a discrete set of numbers, namely, the sum of all values in the data set, divided by the total number of values.” - here
Finding the mean
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YouTube Video (An introductory video to averages)
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Video (In continuation of the one above)
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Khan Academy (Reading Material)
Practice:
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Worksheet (A practice drill)
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Khan Academy (guided practice problems)
What is a median?
Definition: “a value that divides a data sample, population, or probability distribution into two halves.
Finding the median essentially involves finding the value in a data sample that has a physical
location between the rest of the numbers.” - here
Finding the median
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Video (A different teacher. May skip if the first video makes sense)
Practice:
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Khan Academy (Guided Practice)
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Worksheet (This is a drill of the basic concepts. Do not spend too much time if you are getting all the questions right)
What is the mode?
Definition: “the value in a data set that has the highest number of recurrences. It is possible for a data set to be multimodal, meaning that it has more than one mode.” - here
Finding the mode
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YouTube Video (A helpful video describing the fundamentals)
Practice:
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Worksheet (This is a drill of the basic concepts. Do not spend too much time if you are getting all the questions right)
Putting it all together
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Final Khan Academy video (A Summary)
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Practice (Final Practice)
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Real World Applications (Do as many as you need to feel comfortable)
Now check if you are battle-ready by answering the following questions: