trend lines/scatterplots and MIX

Front

What is a trend line?

Back

A trend line is a straight line that represents the general direction of a dataset in a scatterplot. It helps to visualize the relationship between two variables.

Front

What does a positive correlation indicate?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative correlation indicate?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What is no correlation?

Back

No correlation means there is no apparent relationship between the two variables; changes in one do not predict changes in the other.

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for two variables for a set of data, using dots to represent the data points.

Front

How do you identify a weak positive correlation in a scatterplot?

Back

A weak positive correlation is identified when the data points are scattered but show a slight upward trend.

Front

How do you identify a strong negative correlation in a scatterplot?

Back

A strong negative correlation is identified when the data points closely follow a downward trend.

Front

What is the formula for calculating the slope of a line?

Back

Front

What does the term 'MIX' refer to in data analysis?

Back

MIX refers to the variables in a study: the Independent variable (M), the Dependent variable (I), and the eXtraneous variables (X) that may affect the results.

Front

What is the purpose of using proportions in data analysis?

Back

Proportions are used to compare relationships between different quantities, helping to understand ratios and rates.