Table 3
A linear graph is one where there is a steady change in the value on the y-axis with a steady change in the value on the x-axis. The first table will produce a positive sloped straight line that has an increase of 5 in the value of distance with each increment in the time value.
Table 2 will produce a graph where there is a decrease of 2 in the value of distance with an increase in the value of time.
Table 4 will produce a graph where the line is horizontal; the y-value does not change with time.
Table 3 has a graph which has to move up and down to accommodate the decreasing and increasing values, so it will be non-linear.
The median for group 2 is almost double the median for group 1. Group 2's median would be 80, and 1's would be a little over 40, which is about half. The median is the middle line of the box on the graph.
This question is not clear, but I think I understand what you are asking. The difference between alleles of a gene is that some alleles may be dominant or recessive. If one gene has more dominant alleles than another, than it will be more visible.
Answer:
Typically, Copper is used for wires in electric circuits.
The first has to be changed to dwarf star, and the second one is the effect of solar winds. Hope this helps!