11/21 warm up fom

Front

What is a line of best fit?

Back

A 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 does it mean if a line is an accurate line estimate of best fit?

Back

It means that the line closely follows the pattern of the data points, minimizing the distance between the line and the points.

Front

What is the equation of a line of best fit?

Back

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

Front

What does a strong negative correlation indicate?

Back

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

Front

What does a weak positive correlation indicate?

Back

A weak positive correlation indicates that there is a slight tendency for one variable to increase as the other variable increases, but the relationship is not strong.

Front

What is the difference between positive and negative correlation?

Back

Positive correlation means that both variables increase together, while negative correlation means that one variable increases as the other decreases.

Front

What does 'no correlation' mean in a scatter plot?

Back

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

Front

How can you identify the best line of best fit on a graph?

Back

The best line of best fit is the one that minimizes the distance between itself and all the data points, often visually appearing to balance the points above and below it.

Front

What is the significance of the slope in the equation of a line?

Back

The slope indicates the rate of change of the dependent variable (y) with respect to the independent variable (x). A positive slope means y increases as x increases.

Front

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

Back

The y-intercept is the value of y when x is zero; it represents the starting point of the line on the y-axis.