How does a curvilinear relationship between two variables appear on a scatter plot?As a straight upward sloping line.As a straight downward sloping line.As a curve.As a cluster of points with no discernible pattern

How does a scatter diagram help in identifying the type of relationship between two variables? By showing the direction of the relationship By calculating the coefficient of correlation By ranking the data points By showing the frequency distribution

If two variables x and y are perfectly positively correlated then in the scatter diagram every point (x, y) lies on ans. a parabola none A straight line whose gradient is negative A straight line whose gradient is positive

Which regression line properly describes the data relationship in the scatterplot? On a graph, a trend line has a positive slope. There are 4 points above the line, and 2 points below. On a graph, a trend line has a positive slope. There is 1 point above the line, and 5 points below. On a graph, a trend line has a positive slope. There are 3 points above the line, and 3 points below. On a graph, a trend line has a positive slope. There are 5 points above the line, and 1 point below.

What is the primary purpose of a scatter diagram?To calculate the mean of dataTo visualize the relationship between two variablesTo determine the mode of dataTo rank the data points

Scatterplot/Scattergram: Illustrate with examples.