Ch 2: Statistical Graphs
Types of Graphs we will study:
 Dot Plot
 Histogram
 Stem and Leaf Plot
 Boxplot
1. Histogram
a. By Hand
We are interested in the number of classes a
person in this class is taking this quarter.
b. On Calculator
L1 - Data
-2
-1
0
1
3
L2 – Frequency
10
3
4
5
14
c. Unorganized Data
1.1
3.2
4.0
4.8
1.5
3.3
4.2
5.5
2.3
3.3
4.5
5.6
2.5
3.5
4.5
6.5
2.7
3.8
4.7
6.7