Rounding off of data
•1. If the first "extra" digit is LESS than 5-drop it.  Now the last digit of the number remains the same.
•Ex. 4.321 becomes 4.32
•2. If the first "extra" digit is 5 or MORE than 5,  drop the number and increase the last significant digit by 1.
•Ex. 4.336 becomes 4.34
•What is this "even/odd rule" I keep hearing about?
•When digit is exactly 5: option will give an even number as the answer (last digit is 0, 2, 4, 6, or 8). Refer to the examples above.
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