In a scatter plot, one point sits far from the pattern of all the others. What is this point called?
A point lying far from the overall pattern is an outlier.
Scatter plots and bivariate data is a grade 8 math skill aligned to Common Core standard 8.SP.A.1: construct and interpret scatter plots for bivariate measurement data to investigate patterns of association between two quantities. Below are 8 practice questions with answers and step-by-step explanations, drawn from the 22 scatter plots and bivariate data problems our math games drill.
In a scatter plot, one point sits far from the pattern of all the others. What is this point called?
A point lying far from the overall pattern is an outlier.
A scatter plot shows the points , , , , and . One point lies far from the pattern of the others. What is the -coordinate of that outlier?
The first four points step up steadily, but sits far from that pattern, so the outlier's -coordinate is .
A scatter plot shows the points , , , , and . One point lies far below the pattern of the others. What is the -coordinate of that outlier?
The points , , , drop by each step, but falls far below that pattern, so the outlier's -coordinate is .
A scatter plot shows the points , , , , and . The points form one tight cluster plus one outlier. How many points are in the cluster?
The points , , , and sit close together; only is far away. The cluster has points.
Five students' (hours of sleep, quiz score) data pairs are , , , , and . How many of the five students scored above ?
The scores above are , , and , so students.
A scatter plot shows the points , , , , and . For how many of these points is the -value greater than the -value?
Check each point: , , , , . The -value is greater for points.
The points , , , and on a scatter plot lie on a line. If the linear pattern continues, what is the -value when ?
Each step adds to , so after comes : .
A scatter plot shows the points , , , and , which lie on a line. Each time increases by , by how much does increase?
From to to to , goes up by each time goes up by .
Questions like these are served inside our head-to-head math games.
The free placement test finds your level, then every match serves scatter plots and bivariate data questions at exactly the right difficulty.