By the end of this tutorial a student will be able to ...
... by successfully completing the quiz in the tutorial, discussing real-world examples in a short writing assignment, and through a mini-activity including a review of box-and-whisker plots and measure of center.
This tutorial walks students through IQR and outliers in a short video then helps students explore outliers with measures of centers through a series of activities. Students check their understanding through a quiz.
On the same sheet of paper as your journal create another title "Task 2: Mini-Activity".
Next copy a picture of the following dot plot on your paper. This dot plot shows the ages of people at a local movie theater on Saturday afternoon.
Complete the following steps. Show your work for full credit.
Take the four question quiz on the right side of the page near the top. If you don't feel ready review the vocabulary and/or the additional resources at the bottom of the page.
BOX-AND-WHISKER PLOT: A data display that shows the median, quartiles, maximum, and minimum terms along a number line.
INTER QUARTILE RANGE (IQR): The difference (range) of the upper quartile and lower quartile
MAXIMUM: The largest term in a data set
MEAN: The "average" of a data set found by dividing the sum of the terms by the number of terms
MEDIAN: The middle term in a data set when the terms are in order from least to greatest, if there are two terms, the median is the mean of the two digits
MINIMUM: The smallest term in a data set
MODE: The most common term or terms in a data set
OUTLIER: A term that lies far outside the range and trend of other data points in a set; formally defined as less than Q1 - 1.5(IQR) or more than Q3 + 1.5(IQR)
QUARTILE: The median of the upper half and lower half of a data set (not including the median)