Data & Statistics (Algebra 1)

Front

What is the equation of a line of best fit?

Back

The equation of a line of best fit is a linear equation that best represents the data points in a scatter plot, often expressed in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

What is a y-intercept in a linear equation?

Back

The y-intercept is the value of y when x is 0 in a linear equation. It represents the point where the line crosses the y-axis.

Front

How do you determine the number of laps needed to burn a specific number of calories?

Back

To determine the number of laps needed to burn a specific number of calories, you can use the formula: Number of laps = Total calories to burn / Calories burned per lap.

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. It uses dots to represent the values obtained for each variable.

Front

What does it mean if a scatter plot is nonlinear?

Back

A nonlinear scatter plot indicates that the relationship between the variables does not follow a straight line, suggesting a more complex relationship.

Front

What is the definition of association in statistics?

Back

Association in statistics refers to a relationship between two variables, indicating that changes in one variable are related to changes in another.

Front

What does a negative association in a graph indicate?

Back

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

Front

What is the purpose of calculating percentages in data analysis?

Back

Calculating percentages helps to understand the proportion of a specific value in relation to the whole, making it easier to compare different data sets.

Front

How do you find the percentage of data within a specific range?

Back

To find the percentage of data within a specific range, divide the number of data points within that range by the total number of data points, then multiply by 100.

Front

What is the difference between linear and nonlinear relationships?

Back

Linear relationships can be represented by a straight line, while nonlinear relationships cannot and may involve curves or other shapes.