Measures of Spread: Range & IQR
Presentation
•
Mathematics
•
9th - 10th Grade
•
Hard
Sharonda Maxwell
Used 6+ times
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5 Slides • 0 Questions
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Measures of Spread: Range & IQR
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Measures of Spread
Range- the difference between the greatest and the least data values
Interquartile range (IQR)- the difference between the 3rd and 1st quartiles
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VOCAB
quartiles- values that divide a data set into 4 equal parts
Q1 (first quartile) is the median of the lower half of the set
Q2 (second quartile) is the median of the WHOLE set
Q3 (third quartile) is the median of the upper half of the set
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Ex: Find the median, range, and IQR for this set: 77,84,86,90,93
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Measures of Spread: Range & IQR
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