Question

What is the need for bubble charts?

(a) Represent 2D data

(b) Represent 3D data

(c) Represent 2D and 3D data

(d) Represents meta data

This question was posed to me by my college director while I was bunking the class.

Enquiry is from Enhanced JavaScript with R in portion Sockets of JavaScript

Answer 1

Right answer is (b) Represent 3D data

To explain I would say: A bubble plot is a scatterplot where a third dimension is added the value of an additional variable is represented through the size of the dots. They are used to represent three-dimensional data.