Use the table to complete the statements,
The relative frequency of 7th graders who are present
is
The relative frequency of all students who are absent is
Present Absent
Total
7th Grade
48
44 /
39
4
1
8th Grade
9th Grade
26
Total
109
11

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.