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We will continue our discussion on measuring the spread of distributions.

“Spread” is a very important concept in statistics. There are various ways to measure how spread out your data are. Many of the concepts and calculations introduced in this chapter will be used throughout the entire semester!

 

• There are altogether 3 problems in this lab work:

• • #2.6 (side-by-side boxplots)

• • problem not in book (calculate variance, standard deviation)

• • problem not in book (comparing the spread from dotplots )
    • • There is an error in the video: there are 5 (not 4) observations in the data set. So you need to divide the sum by 5 (not 4). My apologies.

 

• The video listed below explains the concepts and also shows you how to do the lab work:

Ch 2 measuring spread — 5-number summary, boxplots, standard deviation

 

• Submit your lab work as a PDF file to Canvas before the due date.

 

• Here is how your grader grades your lab work:

https://www.course.cafe/math/lesson/grading-scheme-for-lab-work-problems/

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