 # Welcome to Statistics How To!

Share on

Looking for elementary statistics help? You’ve come to the right place. Statistics How To has more than 1,000 articles and hundreds of videos for elementary statistics, probability, AP and advanced statistics topics. Looking for a specific topic? Type it into the search box at the top of the page.

The PROBABILITY AND STATISTICS TOPIC INDEX lists the most popular categories.

Watch the welcome video:

##### What is Probability and Statistics? Probability and Statistics usually refers to an introductory course in probability and statistics.

The “probability” part of the class includes calculating probabilities for events happening. While it’s usual for the class to include basic scenarios like playing cards and dice rolling at first, these basic tools are used later in the class to find more complex probabilities, like the probability of contracting a certain disease.

The “statistics” part of probability and statistics includes a wide variety of methods to find actual statistics, which are numbers you can use to generalize about a population.

Statistics How To example: you could calculate the height of all your male classmates and find the mean height to be 5’9″ — this is a statistic. But then you could take that statistic and say “I think the average height of an American male is 5’9″ “. How accurate your guess is depends on many factors, including how many men you measured and how many men are in the entire population. Statistics are useful because we often don’t have the resources to measure, survey or poll every member of a population, so instead we take a sample (a small amount).

Need help with a specific homework or test question? Check out our Statistics How To tutoring page.

Feel like “cheating” at Statistics? Check out our Practically Cheating Statistics Handbook, which gives you hundreds of easy-to-follow answers in a PDF format. Recommended reading at top universities!