What is the IQR?
Analyzing Box Plots

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Mathematics
•
7th - 9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The Interquartile Range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set. It measures the spread of the middle 50% of the data.
2.
FLASHCARD QUESTION
Front
What is the high score on the test?
Back
The high score on the test is the maximum value in the data set, which represents the highest achievement among the scores.
3.
FLASHCARD QUESTION
Front
What percent of the class scored above a certain score?
Back
To find the percentage of students scoring above a certain score, count the number of students above that score and divide by the total number of students, then multiply by 100.
4.
FLASHCARD QUESTION
Front
What is the median score on the test?
Back
The median is the middle value of a data set 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.
5.
FLASHCARD QUESTION
Front
What is the range of scores?
Back
The range is the difference between the highest and lowest scores in a data set. It shows the spread of the entire data set.
6.
FLASHCARD QUESTION
Front
What does a box plot represent?
Back
A box plot visually represents the distribution of a data set, showing the median, quartiles, and potential outliers.
7.
FLASHCARD QUESTION
Front
What are quartiles?
Back
Quartiles are values that divide a data set into four equal parts. Q1 is the first quartile, Q2 is the median, and Q3 is the third quartile.
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