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. TI 83 or TI 84 emulators (Virtual calculators) are convenient for online courses. See links on this page.

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

Summer 2020, Broward College

06/25: Orientation, Introduction, Preview and Statistical Thinking. Chapter1 Notes.
Chapter 2: Frequency Distributions, Histograms, Stem and Leaf Plots. Chapter2 Notes.
HW example questions.
Handout: Mean, median, variance: calculations.
Chapter 3: Measures of center, measures of variation, measures of relative standing and boxplots. Chapter3 Notes. Charts that matters.
Handout: Chapters 1, 2, 3 concepts summary pdf.
Practice 01.

06/30: Chapter 4: intro to Probabililty. Basic concepts, addition and multiplication rule.
Working with Playing Cards Probabilty questions. Complements and conditional probability, counting rules, permutations, combinations, problems involving combinations. Odds. Chapter4 Notes. Conditional probabilty examples.
Practice 02 with Ans.

07/02: Review01 with Ans.

07/07: Test 1 (Chapters 1, 2, 3 & 4). Formula sheet page 1 & Additional formulas.
Note: you may print both formula sheets for the exam.

07/09 Probability distributions. Binomial Probability distribution. Chapter 5 Notes.
Binomial distribution calculations:
Using formula and graphing calculators (TI83, TI84 & Casio 9750).

Practice 03 with Ans.

Additional questions: Two binomial probability experiments.
Answer to question 1 of Two Binomial prob experiments using calculators:
Click here for TI 83, Click here for Casio 9750GII and Here for TI84.

07/14: The Normal distribution. Applications. Central Limit theorem. Chapter6 Notes.
The Normal dist on TI83. Norm dist on TI84. Normal dist on Casio9750GII
Confidence intervals or intervals estimate: Estimating a Population proportion and a Population mean. Chapter7Notes.
Instructions on how to construct CIs using TI83 and 84.
Instructions on how to construct CIs using Casio9750GII and 9860GII.

Practice 04a with Ans: Normal Distribution.
Practice 04b with Ans: Confidence Intervals.

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.

Statistics Tables by Mario F. Triola

07/16: Review02 with Ans.

07/21: Test 2 (Chapters 5, 6 & 7). Formula sheet page 1 & Additional formulas.

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.

07/23: Hypotesis Testing.
Step-by-Step procedure for Hypothesis testing (includes formulas)
Hypothesis Testing Conclusion Wording by M. Triola.
*Hypothesis Testing examples. *Worked answers to examples here.
Inferences about two proportions. Inferences about two means.
Notes, comparing two groups.

Hypothesis Testing by CASIO Graphing Calculators.
Hypothesis Testing by TI Graphing Calculators.

Inferences about two means. Independent & dependent samples.

Practice 05 with Ans Hypothesis testing one sample.
Practice 06 with Ans Hypothesis testing two samples.

07/28: Review 3

07/30: Test 3.

08/04 Review for Final Exam.

08/06: 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:


Tuesdays-Thursdays 6:00pm-9:50pm
Blackboard (online)

Syllabus STA2023 Summer 2020
Session 3:6/25 to 8/08

Online Pearson HW instructions

Blackboard collaborate for students
Brief tutorial:

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.



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

Statcrunch (available as HW help)
Instructional videos.

PPTs from dropbox.

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).

Virtual TI 84 Wabbitmenu

Virtual TI 84 for Chrome OS

TI84 Emulator for 90 days at

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.