Problem-Solving and Data Analysis | Probability | Notes and Practice

Lesson Review Available

Review the foundation notes with TTA Pro Mr.O before solving. If this skill drill is part of an anchor lesson, the notes stay available during practice.

Objective: By the end of this lesson you can answer every Digital SAT probability question at six levels: count the outcomes and the sample space from a list, table, bar graph, spinner, tree or Venn diagram (Level 1); turn two counts into a probability, a complement or an expected count (Level 2); find simple, "or" and conditional probabilities from frequency tables, two-way tables and diagrams (Level 3); combine rows or columns and switch between counts, percents and probabilities (Level 4); beat the denominator, overlap, replacement and reversed-condition traps, including tables with unknown counts (Level 5); and solve the hardest multi-step and parameter problems on time, knowing when Desmos helps and when it cannot (Level 6).