Four students measure the length of a minute-long trial four times. They record their measurements as shown.
Julian:
57.3 seconds, 58.8 seconds, 59.5 seconds, 62.1 seconds
Mia:
58 seconds, 59 seconds, 60 seconds, 61 seconds
Sonu:
50 seconds, 60 seconds, 60 seconds, 70 seconds
Parul:
57.23 seconds, 59.32 seconds, 62.34 seconds, 63.91 seconds
Whose measurements were the most precise?
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