General Chemistry

Jules

Study the key concepts of Physics with descriptive videos, questions, and more

Physics

Patrick

General Biology

Jason

Financial Accounting

Brian

Dive deep into Psychology with videos, practice problems, and more.

Psychology

Microeconomics

The first in a two-course sequence introduces the basic structure and functions of the human body

Anatomy & Physiology

Bruce

College Algebra covers algebraic topics and skills necessary to succeed in college-level math

College Algebra

Organic Chemistry

Johnny

Genetics

Kylia

GOB Chemistry

Dive deep into General, Organic, and Biological Chemistry with videos, practice problems, and more.

Intro to Chemistry

Microbiology

Cell Biology

Analytical Chemistry

Study topics incliding trogonometric functions, identities and equations, solutions of triangles, complex numbers, and other topics as time permits

Trigonometry

Callie

Learn the toughest concepts covered in Precalculus with step-by-step video tutorials and practice problems by world-class tutors

Precalculus

Nick

Learn the toughest concepts covered in Calculus with step-by-step video tutorials and practice problems by world-class tutors

Calculus

Learn the toughest concepts covered in Business Calculus with step-by-step video tutorials and practice problems by world-class tutors

Business Calculus

Learn the toughest concepts covered in Business Statistics with step-by-step video tutorials and practice problems by world-class tutors

Business Statistics

Learn the toughest concepts covered in Statistics with step-by-step video tutorials and practice problems by world-class tutors

Statistics

Biochemistry

Macroeconomics

Dive deep into Personal Health with videos, practice problems, and more.

Personal Health

Dive deep into Nutrition with videos, practice problems, and more.

Nutrition

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Dive deep into Python with videos and more.

Introduction to Python

Arianne Dee

Agile Project and Product Management

Agile & Product Management

Mariya Breyther

Introduction to Microsoft Power BI

Microsoft Power BI

Chris Sorensen

Data Analysis Fundamentals with Excel

Data Analysis - Excel

Chris Sorensen & Ammul Shergill

Getting Started with  and Cryptocurrency

Introduction to Blockchain

George Levy

Learn Enough HTML, CSS and Layout to be Dangerous

HTML, CSS & Layout

Lee Donahoe & Michael Hartl

Learn Enough JavaScript to be Dangerous: A Tutorial Introduction to Programming with JavaScript

Introduction to JavaScript

Michael Hartl

R Programming

Jared P. Lander

Digital Marketing Analytics Beyond Advertising

Digital Marketing

Mike Moran

Project Management

Jeffrey K. Pinto

AI in Marketing

Product & Marketing

Programming

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From probability to hypothesis testing, statistics concepts are explained step-by-step to build problem-solving skills and exam readiness.

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Patrick Ford

Callie Rethman

Colleen Daly

1. Intro to Stats and Collecting Data

2. Describing Data with Tables and Graphs

3. Describing Data Numerically

4. Probability

5. Binomial Distribution & Discrete Random Variables

6. Normal Distribution and Continuous Random Variables

7. Sampling Distributions & Confidence Intervals: Mean

8. Sampling Distributions & Confidence Intervals: Proportion

9. Hypothesis Testing for One Sample

10. Hypothesis Testing for Two Samples

11. Correlation

12. Regression

13. Chi-Square Tests & Goodness of Fit

14. ANOVA

[BOOK STATISTICS] DEFAULT

Ernest

Basic Concepts of Probability

Complements

Addition Rule

Multiplication Rule: Independent Events

Introduction to Contingency Tables

Multiplication Rule: Dependent Events

Bayes' Theorem

Fundamental Counting Principle

Counting

Discrete Random Variables

Binomial Distribution

Poisson Distribution

Hypergeometric Distribution

Standard Normal Distribution

Probabilities & Z-Scores w/ Graphing Calculator

Sampling Distribution of the Sample Mean and Central Limit Theorem

Introduction to Confidence Intervals

Confidence Intervals for Population Mean

Statistics Midterm - Part 2 of 2

A research team wants to estimate the standard deviation of time spent on social media by teenagers. Find the minimum sample size needed to be 99%99\% confident that the sample standard deviation ss is within 3%3\% of the population standard deviation σσ.

A research team wants to estimate the standard deviation of time spent on social media by teenagers. Find the minimum sample size needed to be $99 percent sign$ confident that the sample standard deviation $s$ is within $3 percent sign$ of the population standard deviation $σ$ .