Question

Energy is measured in kilowatt-hours. The table and scatter plot below, show the cost of building a facility to produce energy and the ongoing cost of operating the facility for five different types of energy.Based on the scatter plot, can you conclude that decreased building cost is the cause of increased operating cost? Explain your reasoning.

Answer 1

There is no correlation between the Building Cost and the Operating Cost

1) Examining the graph, we can see that the points are not clustered around a decreasing line.

2) Comparing both variables, we can see the following:

3) Finally, as we can see there is no correlation between the Building Cost and the Operating Cost for the points don't follow a trend around the line. For they do not follow a pattern.