Comparing Measures of Variation
Flashcard
•
Mathematics
•
7th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the interquartile range (IQR)?
Back
The interquartile range (IQR) is a measure of statistical dispersion, representing the range of the middle 50% of a dataset. It is calculated as the difference between the third quartile (Q3) and the first quartile (Q1).
Tags
CCSS.6.SP.B.5C
2.
FLASHCARD QUESTION
Front
How do you calculate the IQR?
Back
To calculate the IQR, first find Q1 (the median of the lower half of the data) and Q3 (the median of the upper half of the data). Then, subtract Q1 from Q3: IQR = Q3 - Q1.
Tags
CCSS.6.SP.B.5C
3.
FLASHCARD QUESTION
Front
What does a box-and-whisker plot represent?
Back
A box-and-whisker plot visually represents the distribution of a dataset, showing the median, quartiles, and potential outliers.
Tags
CCSS.6.SP.B.4
CCSS.HSS.ID.A.1
4.
FLASHCARD QUESTION
Front
What is the median in a dataset?
Back
The median is the middle value of a dataset when it is ordered from least to greatest. If there is an even number of observations, the median is the average of the two middle numbers.
Tags
CCSS.6.SP.B.5C
5.
FLASHCARD QUESTION
Front
What percent of data is below the first quartile (Q1)?
Back
25% of the data is below the first quartile (Q1).
Tags
CCSS.6.SP.B.5C
6.
FLASHCARD QUESTION
Front
What percent of data is between the first quartile (Q1) and the third quartile (Q3)?
Back
50% of the data is between the first quartile (Q1) and the third quartile (Q3).
Tags
CCSS.6.SP.B.5C
7.
FLASHCARD QUESTION
Front
What is the purpose of using box-and-whisker plots?
Back
Box-and-whisker plots are used to summarize and compare distributions of data, highlighting the median, quartiles, and potential outliers.
Tags
CCSS.6.SP.B.4
CCSS.HSS.ID.A.1
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