This is a common tool I always tell me students. People think drawing picture of problems is just for geometry or basic math but it's really great in helping to solve statistics problems as well.
Why Is It Important?
Drawing a diagram or other type of visual representation is often a good starting point for solving all kinds of word problems. It is an intermediate step between language-as-text and the symbolic language of mathematics. By representing units of measurement and other objects visually, students can begin to think about the problem mathematically. Pictures and diagrams are also good ways of describing solutions to problems; therefore they are an important part of mathematical communication.
How Can You Stretch Your Thinking?
Most people are visual learners and work well when problems are illustrated or easy to see. Draw pictures, diagrams, and graphs for problems they find difficult. Label all parts of their drawings. Understand your drawings do not need to be perfect. Rather, the drawings need only represent the problem accurately and clearly show their thought processes.