Constructing and Analyzing Scatter Plots

The video tutorial explains how to create and analyze scatter plots. It begins by defining scatter plots as graphs of ordered pairs, with passing yards as the x variable and points scored as the y variable. The tutorial guides viewers through drawing and labeling the x and y axes, rounding up values, and marking intervals. It then demonstrates plotting data points from a table onto the graph. Finally, it discusses how to interpret the relationships between the plotted points, such as positive or negative linear relationships, curved relationships, or no apparent relationship.

What is a scatter plot?

• A graph of ordered pairs

• A bar chart

• A pie chart

• A line graph

In a scatter plot, what do the x and y variables represent?

• X is the number of points scored, Y is the passing yards

• X is the passing yards, Y is the number of points scored

• X is the number of games, Y is the number of points scored

• X is the number of points scored, Y is the number of games

What is the first step in creating a scatter plot?

• Labeling the points

• Plotting the points

• Drawing the x and y axes

• Finding the highest values

How do you determine the highest value for the x-axis?

• By guessing

• By taking the lowest value and doubling it

• By averaging the values

• By finding the highest value in the table and rounding up

What is the highest value for the y-axis in the given data?

• 51

• 500

• 100

• 60

What is the next step after drawing and labeling the axes?

• Finding the highest values

• Plotting the points

• Drawing a line

• Calculating the average

How do you plot the points on the scatter plot?

• By finding the intersection of x and y values and placing a dot

• By marking the highest values

• By drawing lines

• By coloring the areas

What is the x-axis value for the first row in the table?

• 326

• 38

• 256

• 42

What type of relationships can be observed in a scatter plot?

• Positive linear, negative linear, curved, or no apparent relationship

• Only positive linear

• Only negative linear

• Only curved

What should you take note of when looking at a scatter plot?

• The color of the dots

• The size of the dots

• The labels on the axes

• The overall relationship between the dots