1. January 25, 2013
1) Come-in check your homework using a different colored pen or pencil.
2) Put stars by any problems you have questions about.
Question to think about?
How do you think the vocabulary term central tendency relates to mean, median and mode?

2. Statistics are analyzed.
Mean Median Mode

3. Statistics are collected.
Population
The set of
individuals,
items,
or data from
which a
statistical
example
is taken
Data
factual information,
especially information
used to reason
or make decisions.
Two types of data:
Categorical and Numerical

4. Two Types of Data Categorical Numerical
specific labels or names for categories
“how many” of each category is in the data set
Ex: Restaurant Owner:
Data is categorical because the owner is concerned about, which menu items are most popular.
Numerical
data that is counted or measured
Ex:
Different students’ heights

5. Statistics need to be OrGaNiZeD.
Range
Outliers
Cluster
The points the farthest away from other values in a set of data.
Examples?
The difference between the minimum and maximum values/data points.
A group of
the same or
similar
data occurring
close
together; a
bunch

6. Statistics need to be OrGaNiZeD.
Gaps
areas where values are not present or are missing in the data set.