Understanding Line Plots

Mr. Pearson introduces line plots as a method for organizing and explaining data. He demonstrates how to create a line plot by marking 'X's for each data point and explains how to analyze the data by counting the 'X's. The video includes examples of using line plots for plant growth measurements and student quiz scores, highlighting how to interpret the data and answer questions based on the plot.

What is the primary purpose of a line plot?

• To display data in a circular format

• To show data trends over time

• To organize and explain collected data quickly

• To compare two different sets of data

How is data represented on a line plot?

• With X's

• With circles

• With triangles

• With squares

What does each X on a line plot represent?

• A missing data point

• A group of data points

• A single piece of data

• A range of data

In the plant growth experiment, what was the height of plant number 1?

• 2 and 1/2 inches

• 1 inch

• 2 inches

• 3 inches

How many plants were less than 2 inches tall in the experiment?

• 2

• 3

• 1

• 0

What is the first step in analyzing a line plot?

• Changing the scale of the plot

• Counting the number of X's

• Drawing a new line plot

• Removing outliers

In the quiz score example, how many students scored 100?

• 5

• 4

• 3

• 6

What is the range of scores used in the quiz score line plot?

• 70 to 110

• 80 to 120

• 50 to 90

• 60 to 100

How can you determine the most common score from a line plot?

• By finding the average score

• By counting the number of X's at each score

• By looking at the highest number on the plot

• By checking the lowest score

What should be included in a line plot to make it clear to viewers?

• A title and labeled axes

• A pie chart

• A histogram

• A legend and a key