STAT 1100Q Chapter Notes - Chapter 2: Arrow Keys, Johann Friedrich Blumenbach
22 May 2018
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Sampling Ideas
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In this assignment, we will explore the use of Simple Random Samples. You can
generate these samples using your TI-Calculator. To see how this is done, follow the
example below.
To generate a random sample of integers, press MATH and the Math Menu will appear.
Use the blue right arrow key, , to move the cursor to highlight PRB. The Probability Menu
will appear.
Select 5:RandInt( by using the blue down arrow key, , to highlight it and pressing
ENTER or by pressing the 5 key. RandInt( should appear on the screen. This function
requires three values: the starting integer, followed by a comma (the comma is found on the
black key above the 7 key), the ending integer, followed by a comma and the number of values
you want to generate. Close the parentheses and press ENTER. (Note: It is optional to close the
parenthesis at the end of the command.)
For an example, suppose you want to generate 15 values from the integers ranging from 1 to 50.
The command is randInt(1,50,15).
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Document Summary
In this assignment, we will explore the use of simple random samples. You can generate these samples using your ti-calculator. To see how this is done, follow the example below. To generate a random sample of integers, press math and the math menu will appear. Use the blue right arrow key, , to move the cursor to highlight prb. Select 5:randint( by using the blue down arrow key, , to highlight it and pressing. Close the parentheses and press enter. (note: it is optional to close the parenthesis at the end of the command. ) For an example, suppose you want to generate 15 values from the integers ranging from 1 to 50. Press enter and a partial display of the 15 random integers should appear on your screen. (note: your numbers will be different from the ones you see here. ) Use the right arrow to scroll through your 15 items. You might find that you have some duplicate values.
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