Notes:
[1.1 | Definitions of Statistics, Probability, and Key Terms Statistics: deals with the collection, analysis,
interpretation, and presentation of data.]
Probability: is a mathematical tool used to study randomness
Descriptive Statistics: Organizing
Notes CH 2: Descriptive Statistics
[INTRODUCTION]
Descriptive Statistics: numerical and graphical ways to describe and display your data. Calculate and
interpret measurements and graphs.
Statistical graph: a tool that helps you learn about the shape or di
Data
x
0
0
0
100
100
100
Data
x
0
40
45
55
60
100
1
1
1 SD
1 Mean
1 Median
1
1
1
1
1
1
1 SD
1 Mean
1 Median
1
1
1
1
54.77
50.00
50.00
0
20
40
60
80
100
120
0
20
40
60
80
100
120
32.40
50.00
50.00
As you enter your numbers into one of the data columns, the