Exploring data: Graphs and numerical summaries
Exploring data: Graphs and numerical summaries

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

Free course

Exploring data: Graphs and numerical summaries

2 Data and questions

The data sets you will meet in this section are very different from each other, both in structure and character. By the time you reach the end of the course, you will have carried out a preliminary investigation of each, identified important questions about them and made a good deal of progress with some of the answers. As you work through the course developing statistical expertise, several of these data sets will be revisited and different questions addressed.

There are seven data sets here. You do not need to study them in great detail at this early stage. You should spend just long enough to see how they are presented and to think about the questions that arise. We shall be looking at all of them in greater detail as this course proceeds. However, if you think you have identified something interesting or unusual about any one of them, make a note of your idea for later in the course.


Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to University-level study, we offer two introductory routes to our qualifications. You could either choose to start with an Access module, or a module which allows you to count your previous learning towards an Open University qualification. Read our guide on Where to take your learning next for more information.

Not ready for formal University study? Then browse over 1000 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus371