CK-12 Basic Probability and Statistics - A Short Course

(Marvins-Underground-K-12) #1

http://www.ck12.org Chapter 6. Measures of Central Tendency - Basic


We see that this answer agrees with the result of Example 2.


Besides doing these calculations manually, you can also use the TI83 calculator. Example 2 will be done using both
methods and the TI83.


Step One:


Step Two:


Notice the sum of the data(∑x) = 300


Notice the number of data(n= 12 )


Notice the mean of the data(x ̄= 25 )


Example 2 was done using the TI83 calculator by using List One only. Now we will do Example 2 again but this
time we will utilize the TI83 as a frequency table.


Step One:

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