A scatterplot is a different type of graph to many we have been looking at. Let's break this into two parts.
If we want to see if there is a relationship between two things, which we call variables, we could use a scatterplot. This video shows us how scatterplots help us find patterns or relationships between variables so we can make judgements or decisions about them.
Just like other types of graphs, when you're making a scatterplot, you need to include:
Now this video will show us how we plot the data.
Remember, we need to find the intersection between our two variables, and plot a point at that spot.
The scatterplot shows the height and weight of six students. Use the plot to answer the questions.
How tall is the student who weighs $42$42kg?
How tall is the tallest student?
The scatterplot shows the height and number of storeys of six buildings. Use the plot to answer the questions.
How many storeys does the tallest building have?
Which of the following statements about the plot is true?
The table shows the number of apples eaten per week and the number of visits to the doctor per year by six students.
Answer the following questions.
|Number of apples eaten per week||$2$2||$3$3||$6$6||$8$8||$9$9||$12$12|
|Number of visits to the doctor per year||$16$16||$12$12||$9$9||$6$6||$3$3||$0$0|
Plot the six points on the graph. The first point has been plotted for you.
Sophia wants to visit the doctor as few times as possible each year. According to the plot, should she eat $2$2 or $12$12 apples per week?
Plan and conduct investigations using the statistical enquiry cycle:– determining appropriate variables and data collection methods;– gathering, sorting, and displaying multivariate category, measurement, and time-series data to detect patterns, variations, relationships, and trends;– comparing distributions visually;– communicating findings, using appropriate displays.