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describe the differences between float and double data types.
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the primary difference between float and double data types is their size and precision. a float is a single-precision, 32-bit floating-point data type that has 7 decimal digits of precision. a double is a double-precision, 64-bit floating-point data type that has 15-16 decimal digits of precision.

float takes up less memory and that is why it is generally preferred if memory is a concern. however, double offers more precise values, so if accuracy is a concern, double should be used.
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