###### Asked in The Difference Between

The Difference Between

# Definition of picture graph?

## Answer

###### Wiki User

###### March 02, 2013 3:24PM

**A picture graph uses pictures or symbols to show data. One
picture often stands for more than one vote so a key is necessary
to understand the symbols.**

## Related Questions

###### Asked in Math and Arithmetic

### What is dense graph and sparse graph?

Sparse vs.
Dense Graphs
Informally, a graph with relatively few edges is sparse, and
a graph with many edges is dense. The following definition
defines precisely what we mean when we say that a graph ``has
relatively few edges'':
Definition (Sparse Graph) A sparse graph is a
graph in which .
For example, consider a graph with n nodes. Suppose that
the out-degree of each vertex in G is some fixed constant
k. Graph G is a sparse graph because .
A graph that is not sparse is said to be dense:
Definition (Dense Graph) A dense graph is a graph
in which .
For example, consider a graph with n nodes. Suppose that
the out-degree of each vertex in G is some fraction f
of n, . E.g., if n=16 and f=0.25, the
out-degree of each node is 4. Graph G is a dense
graph because .