Q2 Review

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatter plot. It shows the trend of the data points.

Front

What type of association does a positive graph have?

Back

A positive association means that as one variable increases, the other variable also increases.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the rise over run (change in y over change in x).

Front

What does a steep slope indicate in a graph?

Back

A steep slope indicates a rapid change in the dependent variable with respect to the independent variable.

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you determine the slope from two points?

Back

The slope (m) can be calculated using the formula m = (y2 - y1) / (x2 - x1) from two points (x1, y1) and (x2, y2).

Front

What does it mean if a graph has no association?

Back

If a graph has no association, it means there is no discernible relationship between the two variables being plotted.

Front

What is a scatter plot?

Back

A scatter plot is a graph that displays values for typically two variables for a set of data, showing how much one variable is affected by another.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, representing the value of y when x is 0.

Front

What is the significance of the line of best fit in data analysis?

Back

The line of best fit helps to predict future values and understand the relationship between variables in data analysis.