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Method of Teaching
Use Blackline Master 6.1 to create an overhead for calculating the numerical
descriptions of a two-variable data set. Go over in detail the statistics provided
by the calculator.
Next, use Blackline Masters 6.2 and 6.3 to create work sheets for the students.
Have the students enter and save the non-weighted and weighted two-variable
data sets, and then compute the numerical descriptions. Use the topics For
Discussion to supplement the worksheets.
Using Blackline Master 6.2
Turn the calculator on and press STAT to enter the statistics menu. Delete old
data set by highlighting L1 and pressing DEL ENTER . Repeat for other lists.
Enter the following data set which represents the frequency of observing
doubles with a particular pair of dice. The dice were rolled until fifty doubles
were observed.
X
Y W
11 8
2210
3312
44 9
55 6
66 5
Each row will contain a data pair and the frequency of occurrence.
Check the data you have entered. To calculate the numerical descriptions of the
two variables, press 2ndF QUIT STAT , touch C CALC, and double touch
2_Stats. Press 2ndF L1
,
2ndF L2
,
2ndF L3 ENTER and the
following statistical results will appear:
Numerical Description of a Two-Variable Data Set/STATISTICS USING THE SHARP EL-9600 29