Personal Transportation — Test Answers

What is the marginal relative frequency of students who save money regularly?

Given that 30 students spend money on entertainment and do not save money regularly, what is the conditional relative frequency of students that prefer spending on entertainment and do not save money regularly?

How many students in total save money regularly?

Calculate the number of students who prefer to spend on education.

Based on the graph, which road type shows the highest adoption of eco-friendly fuels?