Scatter Plot Flashcards
Tool used in testing association/relation between two sets of quantitative data.
Scatter Plot
These are data that are numerical. It can be obtained by counting or measuring.
Quantitative Data
These are data that are nonnumerical. It refers to descriptions and characteristics that cannot be counted or measured.
Qualitative Data
These are data that involve only one variable.
Univariate Data
These are data that involve two variables.
Bivariate Data
This is a graph of a collection of ordered pairs (𝑥,𝑦) that refer to two variables. Usually, the independent and dependent variables are set as 𝑥 and 𝑦, respectively.
Scatter Plot
can be interpreted based on its form (or shape) and direction (or trend).
scatter plot
This is the shape of a scatter plot.
Form
The form of a scatter plot may be linear or nonlinear, depending on the pattern of the points.
Form
This is the trend of a scatter plot.
Direction
can be seen using the trend line, which is the line closest to the points in the scatter plot. The direction of the trend line tells whether there is a positive or negative correlation that exists between the two variables being observed.
Direction
If the trend line rises from ____, there is a positive correlation between the two variables.
left to right
On the other hand, if it falls from ______ there is a negative correlation between the two variables.
right to left
This describes the association or correlation between two variables.
Strength of Correlation
can be visually represented by the closeness of the points to the trend line in a scatter plot. Points that are closer to the trend line signify a stronger relationship between the variables.
strength of correlation
