Question

explaining the purpose of a scatterplot
a cell phone company collected data of texting speed in words per minute according to time in minutes. explain why a scatterplot is used to represent the data, including the purpose of scatterplots.

Explanation:

Scatterplots are used to show the relationship between two quantitative variables. In this case, the two variables are texting speed (words per minute) and time (minutes). By plotting each data point (a pair of values for time and texting speed), we can visually observe if there is a pattern, such as a positive correlation (as time increases, texting speed increases), a negative correlation (as time increases, texting speed decreases), or no correlation. Scatterplots help in identifying trends, clusters, and outliers in the data.

Answer:

A scatterplot is used to represent the data of texting speed and time because it can visually display the relationship between these two quantitative variables. The purpose of scatterplots is to show if there is a correlation (positive, negative, or none), identify trends, and spot outliers or clusters in the data.