Maths-
General
Easy

Question

The table shows the distance in miles and price of airfare in dollars.Construct a scatter plotIs there a relationship between distance and airfare? Explain.

Hint:

The correct answer is: We are asked to plot the scatter graph and check if there exists a relationship between the distance and the airfare.

ANSWER:Step 1 of 3:Let the distance be on the x- axis and the airfare be on the y- axis. Then the corresponding coordinate points are:(200,250),(250,300),(300,275),(350,150),(400,400),(450,425),(500,350),(550,250),(600,475),(700,325),(750,200)Step 2 of 3:Plot the points to get the scatter plot.Step 3 of 3:Analyzing the graph, it is clear that there is no exact relationship between the distance and the airfare. Even though there is an increase in the airfare as the distance increase, the increase is not steady.

It not necessary that every set of variables in a data set must have a linear relationship. There are instances where the variables are related and not.