Englishfor English speakers
a
Determinative
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A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
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A is the first letter of the alphabet.
The letter "a" comes before "b".
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In some schools, an A is a very high grade.
Ron got an A on his earth science test.
statistics
Noun
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Statistics are numbers about information.
New crime statistics that show the number of crimes is decreasing.
The government published new unemployment statistics for the month of June.
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Statistics is the science of using and understanding those numbers.
To do research, it's important to understand simple statistics such as averages and standard deviations.
Statistics is a kind of mathematics.