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what information about the sample of a mean not provide
the identities and quantities of elements present
The mean, by itself, does not provide sufficient information to make any assessment of the sample variance.
The purpose of statistical inference is to obtain information about a population form information contained in a sample.
Forensic evidence is not 'sampled,' it is ANALYZED, by taking a 'sample' of it and conducting laboratory or or other technical tests or analyses of it.
You can prove there is glucose in a sample by using Benedict's Solution. Heat up the sample, and add the Benedict's Solution. Assuming the solution is clear, if glucose is present it will change colour to red, or yellow, or green. If not, it will stay clear.
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Benedict's
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it is used for testing a surface for presence of microbes or collect a sample to be analyzed
To find out if asbestos is in your vinyl, have a small sample collected and analyzed by a qualified laboratory.
In math, a survey typically refers to a set of questions or measurements conducted to gather information about a population or a sample. This data is then analyzed to draw conclusions or make inferences about the larger group.