Journal of Statistics Education, Volume 18, Number 2 (2010)
The Effects of Data and Graph Type on Concepts and Visualizations
Linda L. Cooper
Felice S. Shore
Journal of Statistics Education Volume 18, Number 2 (2010),
Z - Scores
Why is this Impor tant?
How do you compare apples and oranges?
Are you as good a student of French as you are in Physics?
How many people did better than you on a test?
How many did worse?
Are you abnormal or deviant?
Dr So and So, are you goin
5. STANDARD DEVIATIONS
The standard deviation is the most widely used measure of
dispersion (fluctuation, risk, volatility).
Eg 1: Consider the monthly returns of Intel and Hershey Foods,
over a period of 10 years.
Intel and Hershey Returns
Math Formulas: Complex numbers
A complex number is written as a + b i where a and b are real numbers an i, called the imaginary unit, has
the property that i2 = 1.
The complex numbers z = a + b i and z = a b i are called co
Case Project 4-2:
Determining the Distance Traveled by an IPv6 Packet based on the Hop Limit Value
Youre interested in determining how far IPv6 packets traveled before reaching your companys
gateway to the Internet. What field should you look at to determ
Cuyahoga Community College
Business & Technology Unit
ELEMENTARY PROBABILITY & STATISTICS I
Instructor: K. Russell Molnar
MATH 1410 Chapter Three Lecture Notes
Measures of Central Tendency measure the middle or center of a set of data. We
will look at three different ways to measure this mean, median, and mode.
Mean the mathematical average. Find the sum of the data values a
MATH 1410 Sections 5.5 5.6 Lecture Notes Spring 2013
Multiplication Rule of Counting If a task consists of a sequence of choices in which
there are p selections for the first choice, q selections for the second choice, r selections
for the third choice, a
Blackboard Homework Assignment #1
1. My name is name I have never taken any math class so far. This course is a
prerequisite for my major(). This is my first math class. My other information
is as follow:
MATH 1410 Chapter One Lecture Notes
Data Facts or figures from which conclusions can be drawn; information.
The field of statistics is characterized by tools and procedures used to work with
Statistics the science of collecting, organizing, summariz
Blackboard Homework Assignment #2
A large community college wishes to gather data on the ages of its full-time students. A random
sample of 25 full-time students is selected and the data is given below.