chemistry

this is my class data list of total heat (KJ) vs Mass of biodiesel fuel burned:

Heat of combustion:
24948 J
606.48 J
35933.3 J
26763 J
24062.5 J
29400 J
6972 J

Mass:
0.39 g
0.31 g
0.18 g
o.43 g
o.36 g
o.28 g
0.34 g

Heat absorbed:
9.729 KJ
1.9564 KJ
11.51 KJ
6.468 KJ
11.6 KJ
8.323 KJ
20.505 KJ

How can I find the class mean?
and what does the slope of the best line graph tell us?

asked by Jonathan T

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