Before summarizing data with descriptive statistics or making inferences about
parameters it is important to look at the data. It is hard to see any patterns by looking
at a list of hundreds of numbers. Equally, a single descriptive statistic in isolation can
be misleading and give the wrong impression of the data. A plot of the data is therefore
The histogram of the data shows a normal distribution except for two
We've been developing intuitive high-quality statistical software at an affordable price, backed up by fast friendly customer service for over 25 years...
Office hours: 9am-5pm GMT Mon-Fri
It's Tuesday 5:02 PM and the office is closed - e-mail us and we'll get back to you as soon as possible.