# Elementary Statistics and Probability Tutorials and Problems

Free elementary statistics tutorials including interactive tutorials using applets as well as analytical tutorials on counting principles and probabilities. Probability and statistics problems are also included.

## Statistics Tutorials

Introduction to Statistics .
Quartiles and Box Plot Definiton and computation of quartiles with Examples and detailed solutions.
Properties of the Normal Distribution Curve An interactive tutorial using an applet to explore the effects of the mean and standard deviation on the graph of a normal distribution.
Reading Histograms - Examples With Solutions. Tutorial on how to read and interpret histograms.
Reading Pie Charts - Examples With Solutions. Tutorial on how to read and interpret pie charts.
Reading and Interpreting Stem and Leaf Diagrams - Examples With Solutions. Tutorial on how to read and interpret stem and leaf diagrams.
Mean, Median and Mode. Examples with solutions.
Standard Deviation. Examples with solutions.

## Counting

Counting Problems With Solutions. Counting problems are presented along with their detailed solutions.
Factorial Questions with Solutions. Tutorials on evaluating and simplifying expressions with factorial notation.
Factorial Calculator. Calculate the factorial of a positive integer.
Combinations Calculator. Calculate the number of combinations of n elements taken r at the time.
Permutations Calculator. Calculate the number of permutations of n elements taken r at the time.
Permutations and Combinations Problems. Permutations and combinations are used to solve problems

## Probability Tutorials

Introduction to Probability .
Mutually Exclusive Events - Examples With Solutions .

Probability Questions with Solutions . Several questions with solutions as well as exercises with answers.
Tutorial on Discrete Probability Distributions Tutorial on discrete probability distributions with examples and detailed solutions.
Binomial Probability Distribution Calculator An online calculator to calculate binomial probability distributions.
Normal Distribution Probability Calculator An online calculator to calculate probabilities associated with normally distributed variables.

## Statistics and Probability Problems

Mean and Standard deviation - Problems with Solutions . Mean and standard deviation problems are presented. Problems related to data sets as well as grouped data are discussed.
Statistics and Probability Problems with Answers - sample 1: mean, mode, standard deviation, quartiles, frequency distribution of qualitative data.
Statistics and Probability Problems with Answers - sample 2: probability, counting, mean and standard deviation, mean of grouped data (frequency table) and weighted mean.
Statistics and Probability Problems with Answers - sample 3: probability, mutually exclusive events, combinations, binomial distributions, normal distributions, reading charts.
Linear Regression - Problems with Solutions Linear regression and modelling problems are presented along with solutions.
Normal Distribution Problems with Answers . Problems and applications on normal distributions are presented along with their solutions.