To determine which student results are more precise, we need to look at the range of their readings. The smaller the range, the more precise the measurements are.
Jacob's readings have a range of 0.798 (1.898 - 1.100)
Tumi's readings have a range of 0.1 (1.200 - 1.100)
Sharon's readings have a range of 0.012 (1.500 - 1.488)
Sisi's readings have a range of 0.091 (1.000 - 0.909)
Therefore, Sharon's results are the most precise as they have the smallest range of readings.
Four students measured the density of sea water which is shown in the table below. Which of the student results are more precise?
Density
Jacob
Tumi
Sharon
Sisi
Reading one
1.898
1.100
1.499
0.999
Reading two
1.480
1.200
1.500
0.989
Reading three
1.200
1.000
1.488
1.000
Reading four
1.100
1.150
1.400
1.100
Reading five
1.100
1.100
1.493
0.909
1 answer
1 answer