Exploring One–Variable Data
Which term describes how spread out or clustered together data values are?
Which graphical representation shows the five-number summary including minimum, Q1, median, Q3, and maximum?
The stem-and-leaf plots below represent the scores of two groups of students, Group P and Group Q, on a math test. Use the plots to compare the score distributions of the two groups.
Group P: Stem Leaves 6 1 4 5 8 7 0 3 5 8 8 2 4 5 9
Group Q: Stem Leaves 6 ...
What does the interquartile range (IQR) measure in a quantitative data set?
What type of sampling involves dividing the population into groups and then randomly selecting entire groups for inclusion in the sample?
When comparing box plots, which component can be used to assess variability between two data sets most effectively?
When comparing two distributions with similar shapes and spreads, which measure is most reliable for determining if one distribution typically has higher values?
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When comparing two distributions using histograms, what does it mean if one histogram has taller bars compared to the other?
What do we call the middle number when the data are ordered from least to greatest?
In examining parallel box plots measuring test scores from multiple classes, what indicator might suggest that one class's performance is more inconsistent than others even if their medians are identical?