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    A year group in school contains 200 pupils. A random sample of 8 pupils is to be selected from the year group.

    Describe how 3-figure random numbers (obtained from either tables or a calculator) could be used to select the sample.

    Does anyone know
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    Number the kids 0-199. Take the 3-figure no. and calclulate its residue mod 200, its remainder when divided by 200, then use the corresponding kid.
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    (Original post by confused?)
    A year group in school contains 200 pupils. A random sample of 8 pupils is to be selected from the year group.

    Describe how 3-figure random numbers (obtained from either tables or a calculator) could be used to select the sample.

    Does anyone know
    This is by random sampling by using the Ran# function on your calculator, so
    for three figure number, from 1 to 200:

    Each pupil is assigned a specific number from 1 to 200 (unique for each pupil)

    and using Ran#(200) pressing button several times will give random numbers from 1 to 200.
    You round the numbers up and select that particular pupil from the 200 pupils.
 
 
 
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Updated: June 9, 2005
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