A quick and painless way to get 5-number summaries and sample standard deviations. Also sorts numerical data. Just copy and paste your data into the box.
Copy and paste data from a spreadsheet or the internet and get a histogram right away.
Convert z-values into percentiles (and vice versa) by moving the slider. Also gives P-values for the normal distribution. Click on the image below.
Find the probability distribution and cumulative distribution (CDF) for the binomial distribution.
Here is a formula sheet that will help calculate t-values and confidence intervals for you.
A calculator for finding expected counts and Chi-squared for a two-way table.
If you don't have Excel on your personal computer, I highly recommend downloading LibreOffice Calc. It is free and works just as well as Excel.