Selecting a sample manually (raffle tickets)
This method is rarely used in research applications.
Selecting a sample with random numbers
To select a random sample without replacement using random numbers,
Random number between 0 and k
The easiest way to generate a random number between 0 and 357 is to use a spreadsheet such as Excel — it has a function designed for this purpose, "=RANDBETWEEN(0, 357)". A computer-generated random value is strictly called a pseudo-random number.
If a computer is not available, a sequence of random digits can be generated:
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A random number that is equally likely to have any value between 0 and 357 can be found by repeatedly generating 3-digit numbers (between 0 and 999) until a value between 0 and 357 is obtained.