Introduction to Statistics
English Test
Student
John
Julie
Samuel
Tonya
sd
mean
test score z score
82
-1.3158
88
0.4386
90
1.0234
86
-0.1462
3.42
86.5
Math Test
Student
Jim
Jordan
Saye
Lisa
sd
mean
test score z score
81 -0.3488
85
1.5116
79 -1.2791
82
0.1
Introduction to Statistics
Qualitive and Quantitive Variables
Qualitive variables are data that can be observed. When looking at something it is possible to gather the
information by a way of seeing it and not counting it. The information cant be measured
Introduction to Statistics
Probability
1.
Independent events- two events are considered independent events if one event doesnt
affect the probability of the occurrence of another event.
Dependent events- two events are dependent if the probability of one
September 24, 2015
Statistics
Assignment 2.1
The second lesson for this class goes into the complexity about descriptive statistics and
the various detailed methods of frequency distributions while creating data tables. Frequency
descriptive statistics ar
February 6, 2015
Statistics
Assignment 1.1
The start of our first week of class goes into the complexity about what statistics
represents and explains the various meticulous systems of noting and building statistics for
reference topics. Throughout this l
October 15th 2015
Professor Vazquez
Answer the following questions.
1.
Define and explain the following terms: independent events, dependent events,
mutually exclusive events.
Independent events: In comparison to two events, if one event does not affect t
Answer the following questions.
Use the Standard Normal Distribution Table for reference "Standard Normal Distribution
Table"
1.
Calculate the z score for each set of data. Determine who did better on her respective
test, Tonya or Lisa.
2.
Student
English
Statistics
Assignment 3.1
The assignment
Below is a list of grades received by a 12th grade math class for
their final exam. Properly organize the data using a method of your
choosing and then calculate the measures of central tendency
including mean, med
Working Problem 4.24
According to U.S department of Justice, Office of Justice programs, Bureau of
Justice Statistics, about 15% of Federal law enforcement officers are female (F)
and 85% are male (M). Two federal law enforcement officers were selected at
Presentation
Of Central Tendency
Variability &
Position
Central Tendency
Central tendency finds the average of data
The Mean, Median & Mode
Arithmetic Mean = Sum of variables
F re q u e n c y
3 .5
3
2 .5
2
F re q u e n c y
1 .5
1
0 .5
94
91
90
88
86
85
84
Christina Burgos
Writing Assignment: Future Family
In the future families are going to drastically change. You see it more and more
in schools the technology that they are implementing into the daily workload. If I was to
guesstimate in the future there w
Christina Burgos
Statistics Elmogahzy
Lesson 1
Variables are things that we can measure and that can affect the outcome of your
research. There are variables that typically focus on numbers, amounts or frequencies
which are known as quantitative. Qualitat
Presentation
Of Central Tendency
Variability &
Position
Central Tendency
Central tendency finds the average of data
The Mean, Median & Mode
Arithmetic Mean = Sum of variables
F re q u e n c y
3 .5
3
2 .5
2
F re q u e n c y
1 .5
1
0 .5
94
91
90
88
86
85
84
Christina Burgos
Statistics
Assignment 5.1
1.
o
Calculate the z-score for each set of data. Determine who did better
on her respective test, Tonya or Lisa. Tonya did better on her
test
Student
EnglishTest
Grade
zScore
Student
MathTest
Grade
zScore
John
82
1. Define and explain the following terms: independent events, dependent events,
mutually exclusive events.
2. Give examples of each of the aforementioned events.
3. What is the probability that a student in a college of 650 students is both a math
major
Christina Burgos
Statistics
Analytical Assignment
Lesson #3
1) Identify the variables in the above data sets as quantitative or qualitative and describe
the level of measurement of each variable.
Points per Game = Quantitative Touchdown = Quantitative Reg