This introduction to inferential statistics and to calculus is suitable for first-year university business majors. Its conversational tone, plentiful business-related examples and exercises, and abundant visual illustrations make for a very readable text. The rationale behind sampling, confidence intervals, and hypothesis testing are justified with clear explanations before being summarized as algorithms. Just enough calculus is provided to help students succeed in intermediate economics courses. It does not contain enough material for a full-semester course, but is an excellent supplement to add inferential statistics to a standard finite mathematics textbook.