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When looking for a mathematical relationship between two variables use?
line graph or a scatter plot.
What does a scatter plot with negative linear relationship look like?
A straight line of points going from top left towards bottom right.
How can a scatter plot be used?
A scatter plot can be used to see if there is any relationship between two variables. It can also give a general idea of the nature of that relationship (linear, quadratic, logarithmic, inverse square, etc; whether or not the relationship remains constant over the domain, whether or not the variation remains constant (homoscedasticity), and so on.
Is it possible to make a prediction based in a scatter plot with no correlation?
Correlation is an estimate of a linear relationship between two variables and takes no account of non-linear relationship. If the relationship is quadratic and the domain is symmetric about some point, the correlation will be zero. It is, thus possible for the points on the scatter plot to lie exactly on a parabola while the calculated correlation is zero. In such a case, it is easy to make a prediction despite no correlation.
What is observed in a scatter plot when there is an inverse relationship between x and y?
no
When looking for a mathematical relationship between two variables use?
line graph or a scatter plot.
Is a curved line on a scatter plot still considered linear?
No, it's not consider as a linear scatter plot, because, it's non-linear.
How do you write a linear equation for a scatter plot?
l
Is it possible for a scatter plot to have a positive or negative association that is not linear?
Certainly. It could, for example, be a power relationship such as y = x^3
What does a scatter plot with negative linear relationship look like?
A straight line of points going from top left towards bottom right.
How can a scatter plot be used?
A scatter plot can be used to see if there is any relationship between two variables. It can also give a general idea of the nature of that relationship (linear, quadratic, logarithmic, inverse square, etc; whether or not the relationship remains constant over the domain, whether or not the variation remains constant (homoscedasticity), and so on.
Is it possible to make a prediction based in a scatter plot with no correlation?
Correlation is an estimate of a linear relationship between two variables and takes no account of non-linear relationship. If the relationship is quadratic and the domain is symmetric about some point, the correlation will be zero. It is, thus possible for the points on the scatter plot to lie exactly on a parabola while the calculated correlation is zero. In such a case, it is easy to make a prediction despite no correlation.
What is observed in a scatter plot when there is an inverse relationship between x and y?
no
Which graph demonstrates a relationship between the variables?
A scatter plot.
Judging from this scatter plot what kind of relationship does there seem to be between seniority and job performance?
no relationship
When should you use a scatter plot?
You should use a scatter plot when you want to show the relationship between an independent and a dependent variable in a manner that is quick and easy to view.
What is is the purpose of a scatter plot?
Scatter plot graphs are used in mathematics. They are used to show types of relationships or correlations that are between two sets of data.
