Understanding the Lower Quartile | Math Mr. J

Welcome to Understanding the Lower Quartile with Mr. J! Need help with lower quartiles? You're in the right place!
Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with quartiles. Mr. J will go through a lower quartile example and explain the steps of how to find the lower quartile.
✅ Understanding the Upper Quartile: • Understanding the Uppe...
✅ How to Find Quartiles (Odd Set of Data): • How to Find Quartiles ...
✅ How to Find Quartiles (Even Set of Data): • How to Find Quartiles ...
✅ How to Find Quartiles (Even and Odd Sets of Data): • Quartiles | Lower Quar...
✅ Interquartile Range: • Interquartile Range (I...
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Hopefully this video is what you're looking for when it comes to finding the lower quartile.

[@MathwithMrJ]

✅ Thanks so much for watching!
✅ You can find more videos relating to quartiles in the description.
✅ With an odd set of data, you can either include or exclude the median from the lower and upper half of the data. In this video, I used the exclusive method. This means that the median is excluded from the lower and upper half of the data when finding the lower and upper quartile (this means that I excluded the median 8 from the lower and upper half). The other method is called the inclusive method. This means that you include the median in both the lower and upper half when finding the lower and upper quartile. For example, the halves would look as follows with the inclusive method (lower = 1,2,4,7,8 and upper = 8,8,10,14,15). Both methods can be used, but each will give a slightly different result.

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