Discussion
Floating-point numbers are used to represent :
Answer: A
Floating-point numbers are used to represent very small or very large numbers (the first option).
A floating-point number stores a sign, a mantissa and an exponent, like scientific notation. The exponent lets the same word length represent values as small as about \(10^{-38}\) and as large as about \(10^{38}\) in single precision, far beyond the range of integers of the same size. That range is the reason for the format.
Floating-point numbers can be positive or negative, since the sign bit handles both, so the options limiting them to positive numbers, negative numbers or large negative numbers are wrong.
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