It is 4.4
Most schools teach you to always round 5 up (to 4.5). However, doing so is inappropriate because it introduces an upward bias. The IEEE (Institute of Electronic and Electrical Engineers) standard 754 is to round 5 up or down so that the new last digit is even. See link for more: //en.wikipedia.org/wiki/Rounding#Round_half_to_even
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It is then 5.7 when rounded to one decimal place
3.214 rounded to one decimal place is 3.2
10.27 rounded to one decimal place = 10.3
4.396 rounded to one decimal place is 4.4
It is 61.3 when rounded to one decimal place