STA2023 Elementary Statistics

If you change the way you look at things, the things you look at change.
Max Plank

Any fool can know. The point is to understand.
Albert Einstein

STA2023 Statistics

Lectures are limited to main concepts and solving examples. Most of the time, we will be solving problems in class. In every class. 

The use of a graphing calculator is strongly recommended: Casio 9750, TI 84 or similar.

Taken from the "Insider s guide to teaching with the Triola Statistics Series" by Mario Triola, author of the textbook: The author s personal preference is to require that each student have a TI 83 plus or TI 84 plus calculator, and each student also do several software projects using Statdisk.

STA2023: Activities

Spring 2020, Broward College

01/07: Orientation, Introduction, Preview and Statistical Thinking. Activity 1. Chapter1 Notes. Stat 101 (additional) Notes. Practice 1; Practice1Answers.

01/09: Chapter 2: Frequency Distributions, Histograms, Stem and Leaf Plots. Chapter2 Notes. Practice2; Practice2Answers. HW example questions. Mean, median, variance: calculations.
Chapter 3: Measures of center, measures of variation, measures of relative standing and boxplots. Chapter3 Notes. Practice 3, Practice3Ans. Charts that matters.
** Boxlpot on TI83 - TI84 (pdf created by the National Council of Teachers of Mathematics:
**Create a Histogram using Casio fx9750 (pdf created by Casio education, authors: Kathleen Mittag and Sharon Taylor.)
**The McDonalds lunch service times dataset in excel. Chapters 1, 2, 3 concepts summary pdf.

01/14: Chapter 4: intro to Probabililty. Basic concepts, addition and multiplication rule. Conditional probabilty examples.

01/16: Chapter 4, Probabililty (continued): Complements and conditional probability, counting rules, permutations, combinations, problems involving combinations. Odds. Playing Cards Probabilty questions. Chapter4 Notes. Practice4. Practice4_worked answers.

01/21 and 01/23: Review for Test 1 consists of: Review01, correct choices here; Practice4, Practice4_worked answers (probability questions not included on Review01) and Discussion (Essay questions).

01/28. Test 1 (Chapters 1, 2, 3 & 4). Formula sheet page 1 & Additional formulas. Note: you may print both formula sheets for the exam.

01/30: Probability distributions. Binomial Probability distribution. Chapter5Notes.
Questions: Two binomial probability experiments. Answer to Question 1 using calculators:
Click here for TI 83, Click here for Casio 9750GII and Here for TI84.
Binomial distribution calculations: using formula and graphing calculators (TI83, TI84 & Casio 9750).

02/04 Practice5. Practice5 worked answers. Binomial distribution calculations: using formula and graphing calculators.

The standard Normal distribution. Applications. Central Limit theorem. Practice6. Practice6 worked answers. Chapter6 Notes.
The Normal dist on TI83. Norm dist on TI84. Normal dist on Casio9750GII

02/11 Practice6. Practice6 worked answers... Continued.

Central Limit Theorem:
Regardless of the population distribution model, as the sample size increases, the sample mean tends to be normally distributed around the population mean.

The t distribution, also known as Student t-distribution, is a probability distribution that is used to estimate population parameters when the sample size is small and when the population variance is unknown.

02/13, 02/18 and 02/20: Confidence intervals or intervals estimate: Estimating a Population proportion and a Population mean. Chapter7Notes.
Practice7. Practice7Ans. Practice 7 worked answers.
Instructions on how to construct CIs using TI83 and 84.
Instructions on how to construct CIs using Casio9750GII and 9860GII.

02/25, 02/27, 03/10: Review of Practices 5, 6 & 7. Review2. Review2 Correct choices.
Review 2 worked answers.

03/12. Test 2 (Chapters 5, 6 & 7).

Rare Event Rule for Inferential Statistics: if under a given assumption, the probability of a particular observed event is extremely rare, we conclude that the assumption is probably incorrect.

03/17, 03/19, 3/24: Hypotesis Testing, Chapter8Notes. Practice8, Pracice8Ans.
Hypothesis Testing Conclusion Wording by M. Triola.
*Hypothesis Testing examples to work and discuss in class. *Worked answers to examples here.

Step-by-Step procedure for Hypothesis testing (includes formulas)
Hypothesis Testing by CASIO Graphing Calculators.
Hypothesis Testing by TI Graphing Calculators.

03/26, 03/31: Inferences about two means. Independent & dependent samples.
Notes, comparing two groups.
Practice9 Independent samples.

04/2: Dependent Samples, Practice10. Practice10Ans.
Using (software) Statcrunch or Statdisk to work on homework questions.

Contingency Tables. Notes. Questions and answers.
Examples: Homework questions using Statdisk (screenshots included)

04/9 & 04/14:
Review3 based on practices 8 and 9 for Test 3.
Mock Test 3 ... test yourself !
Step by Step answers to mock test; using both, graphing calculators and formulas.

04/16: Test 3

04/21: Correlation and regression. Notes. Practice 11. Practice11Ans.
HW questions answers using StatCrunck (includes screenshots).
Producing a scatter plot on TI84 plus, pdf created by TI Education.

04/23 & 04/28. Review for Final Exam. Answers.

04/30: Final exam.

Instructions on how to use your calculators (Statistics):
Scientific calculatotors like TI 36 Pro, TI 30 II, Casio fx 115 ES only perform a limited number of operations ( Chapter 3):

A) Descriptive Statistics in TI 83 & 84.
B) Normal CDF in TI 83 & 84.
C) Descriptive Statistics and Normal CD in TI 36 pro.
D) Descriptive Statistics in TI 30 II.
E) Descriptive Statistics and Normal CD on Casio fx115ES.
F) TI-NSpire: descriptive statististics by Dr. L Schultz.
G) TI-NSpire: Normal distribution by Dr. L Schultz.
H) TI-83 & TI-84 Tips for Statistics by Univ of Illinois.
I) Casio FX-9750GII Statistics by David Diez, OpenIntro.

OpenIntro Stat youtube channel:

Entering Data and 1-Variable Statistics (TI-84 & TI-83)

1-Variable Statistics and Box Plots on a Casio fx-9750GII

Normal Dist Tail Areas on TI-83 & TI-84 Plus

Casio fx-9750GII - Binomial Formula (Distribution, Including Cumulative Distribution)

Probability: The Deck of Cards.

A deck of cards consists of 4 suits, 13 cards each for a total of 52 cards. The four suits are: Spades, Hearts, Diamonds, and Clubs. Each suit contains an A (Ace), numbers from 2 to 10, and three face cards: J, The Jack; Q, the Queen and K, the King.
Colors: Hearts and Diamonds are red, Spades and Clubs are black.

Spades, Hearts, Diamonds, Clubs:


Tues-Thurs 5:00pm-6:15pm
Bldng 70, room 107

OpenIntro Statistics is an open-source textbook for introductory statistics written by David Diez, Christopher Barr, and Mine Cetinkaya-Rundel. Free to download.
This books DOES NOT replace the textbook for our course, but it may be used as a complementary source.


Online Statistics Education: An Interactive Multimedia Course of Study developed by Rice University (Lead Developer), University of Houston Clear Lake, and Tufts University.

Syllabus STA2023
Session 1: 01/04 to 05/01

Online Pearson HW instructions


Mario Triola Statistical software
Download or work online:
Win or Mac
, free.

Statcruch (available as HW help)
Instructional videos.

PPTs from dropbox.

OpenIntro Stat youtube channel

Casio FX-9750GII
Guide for Introductory Statistics
by David Diez, OpenIntro.

TI-83 & TI-84 Tips for Statistics

Virtual TI 83:
Download compressed folder (windows zip).

Casio FX-991EX
Instructions: descriptive stat.
Instructions: distributions.

TI 36X pro

Statistics Formulas by Mario F. Triola

Statistics Tables by Mario F. Triola

Complete set of formulas and tables


Mathematics of a Lady Tasting Tea


The R Project for Statistical Computing

Datasets Available in R - GitHub Pages

Understanding Public Opinion Survey
by MichiganSc.

Testing One proportion: questions