# chp11 - RANDOMNESS • It’s not easy being random •...

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CHAPTER 11 Understanding Randomness 2 RANDOMNESS • It’s not easy being random. • Pick a number, either 1, 2 or 3, at random. Write this number down as your frst digit. • Pick a number, either 1, 2 or 3, at random. Write this number down as your second digit. 3 TRYING TO BE RANDOM 1 2 3 Total 1 2 3 Total First Digit Second Digit 4 USING JMP TO BE RANDOM 1 2 3 Total 1 2 3 Total Second Digit

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RANDOM NUMBERS • What’s the difference between the classes “random” numbers and JMP’s “random” numbers? WHAT IS RANDOMNESS? • Random events: - ___________________________ - Fipping a coin • No structure in ______________ - could get 5 heads in a row • Structure in ______________ - Will get around 50% heads. HOW DO WE GET RANDOM NUMBERS? • __________________ - pseudorandom numbers • Random Events - Radioactive decay - ___________________________ • Table in Appendix E - List of numbers 0 through 9. - Organized by rows and in columns of 5.
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## This note was uploaded on 10/07/2009 for the course STAT 101 taught by Professor Graham during the Fall '08 term at Iowa State.

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chp11 - RANDOMNESS • It’s not easy being random •...

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