Introduction to Statistics
"Welcome back to School! Wish everyone in the new semester
More happiness! More Health! More Bright Future!"
-- Dr K
• How Hot is Statistics/Big Data now:
Statistics/Big Data is like teenage sex
Everyone talks about it
Nobody really knows how to do it
Everyone thinks everyone else is doing it
So everyone claims they are doing it....
For the textbooks of statistics, there are usually two classic textbooks:
1. Elementary Statistics, 3rd CA Edition, by Triola, Pearson
Elementary Statistics: A Step By Step Approach 10th Edition
by Allan G. Bluman
The following are the amazon links for the textbook and student solution manual.
You may consider buying together with other classmates if it's expensive.
Download Lecture Notes
Lecture01: Introduction, Motivation to Stats
Lecture02: Measure of Central Tendency, Variance, Measure of Position
Homework #1: from section 3.1, 3.2, 3.3 Central Tendency, Variance
Homework #1 Solution: from section 3.1, 3.2, 3.3
Lecture03: Addition rule of probability,Multiplication rule,Independent Events
Homework #2: Multiplication rule
Homework #2 Solution
Hw #3:permutation, combination
Lecture04: Counting rules,Permutation, Combination
Please Print out: Exam 1 formula sheet
Lecture05: probability distribution, binomial distribution
Hw #4: probability distribution
Hw #4 detail Solution
Lecture06: Normal distribution, approximation to normal distribution
Lecture07: Central Limit theorem, approximation to binomial distribution
Print out: Normal Distribution Table
Homework #5: Normal Distribution
HW #5: More detail
Homework #6: Central Limit Theorem
Hw #6: solution
Please print out: Exam 2 formula sheet
Lecture08: Confidence Interval for the mean
Homework #7: Confidence Interval from 7.1-7.3 solution
Hw #7: solution more details
Example: Margin of error in presidential election
Lecture09: Introduction to Hypothesis testing
Lecture10: 5 Steps for Hypothesis testing about the mean
Homework #8: Z test for Hypothesis testing with Solution
Homework #9: T test with solution
Items for Exam 3: formula sheet
Don't buy stuff for cheap, eventually it will cost you more.
• How can you get some cash back when you shop online?
Say, you want to buy some grocery from target online(3% cash back), or buy a ipad from apple store(1% cash back),
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when you want to buy something online, don't go to their site directly, but go to this site Mr. Rebates
then find the website on Mr. Rebates
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This can help you earn a few hundred dollars per year easily.
Exam with solutions
We provide the comprehensive final exams, and the detailed solutions with step by step explaination, plus the final grading rules!
Final Exam 1
Final 1 solutions
Final Exam 2
Final 2 solutions
Final Exam 3
Final 3 solutions
Final 4 solutions
• Practice Exam Review 1a
Practice Exam Review 1b
Practice Exam Review 2a
Practice Exam Review 2b
Practice Exam Review 3a
Practice Exam Review 3b
Here are 2 more useful and powerful big data applications:
• If you want to find the household income
around your neighborhood, or monthly rent, education level, race distribution, same-sex couple
around your neighborhood,
you can go to the NYTimes webiste
• If you want to find out whether there are Sex Crime Offenders
around your neighborhood,
you can go to the MeganLaw Government webiste
In case if you really want to invest and polish your data scientist/statistician skillsets, you can get the
following "7-week free training called Data Incubator
The Data Incubator is an intensive 7 week fellowship that prepares the best scientists and engineers with advanced degrees to work as data scientists and quants. It identifies fellows who already have the 90% difficult-to-learn skills and equips them with the last 10%: the tools and technology stack that make them self-sufficient, productive contributors. The program is free for fellows. Employers only pay a tuition fee if they successfully hire.
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