MHB What Do Q1 and Q3 Represent in a Data Set?

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Q1, or the first quartile, represents the score below which 25% of the data falls, while Q3, the third quartile, indicates the score below which 75% of the data falls. The median is referred to as Q2, marking the middle value of the dataset. There is a clarification needed regarding the initial question about whether Q1 is the lowest grade and Q3 the highest, as these terms specifically refer to statistical quartiles rather than absolute grades. Understanding these definitions is crucial for interpreting data sets accurately. Quartiles are essential for analyzing data distribution and identifying outliers.
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what would Q1 and Q3 mean? I can't answer these questions until I know what these columns represent.

Is Q1 the lowest grade given and Q3 the highest?
 

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elove said:
what would Q1 and Q3 mean? I can't answer these questions until I know what these columns represent.

Is Q1 the lowest grade given and Q3 the highest?

Hi elove! ;)

Q1 is the first quartile. It means that 25% scored lower than the given score.
Similarly Q3 is the 3rd quartile.
The median is the same as Q2.
 

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