CK-12 Basic Probability and Statistics - A Short Course

(Marvins-Underground-K-12) #1

http://www.ck12.org Chapter 7. Organizing and Displaying Data - Basic


Using theTRACEfunction will give the coordinates of the points


4.a. The coldest day was July 7th.


b. The hottest day was July 19th.


c. There does not appear to be a change in temperature on July 1stand 2nd, July 10thand 11th, July 17thand 18th.



  1. The first graph is labeled correctly as being continuous data.


The amount of fuel remaining in your gas tank is plotted for each hour you drive. However, the amount of fuel in
your gas tank decreases every minute/second you drive. All values on the graph are meaningful and therefore can be
joined. This is continuous data.


The second graph is also labeled correctly as being discrete data. The cost of CDs is plotted for each CD you
purchase. The cost to you changes only when another CD is purchased. The values between the plotted points are
not meaningful and therefore are not joined. This is discrete data.

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