Statistics Tutor

The goal of "Statistics Tutor" is to make statistics learning easier.

Major Updates:

Chapter 4:

What is least square line?

Linear regression modeling.

Trend, seasonal variations, cyclical variations, and irregularity in time series analysis.

How to get seasonal index in time series analysis.

Chapter 5

Basic rules, rule of addition, rule of multiplication, and their applications (Updated examples and solutions)

Applications of probability

- What is the probability of winning a lottery

Combinations in probability.

- How to calculate the probability of winning on a gambling slot machine using the combination concept

Bayes' theorem and application.

- Shortcut to understand the Bayes' theorem.

Chapter 6

Discrete random variables

Binomial distributions

- Binomial distributions FAQs

Poisson distributions

Binomial and Poisson distributions in Microsoft Excel

Chapter 7

Distribution for continuous random variables.

Chapter 8

Distribution for sample mean

What is the difference between the distribution for sample mean and the distribution for variables.

Chapter 9

Quality control chart

Find center line, upper control limit, lower control limit for X chart, R chart

Chapter 10

Hypothesis testing for the mean of one population.

*Student t-value calculator is available at http://tinyurl.com/studentt

*Normal distribution z table calculator (Calculator Z Table) is at http://tinyurl.com/ztablecalculator