Problem-Solving and Data Analysis | Statistics I | 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 one-variable statistics question at six levels: read a mean, median, mode or range straight from a list, table or box plot (Level 1); turn a list or a small table into a mean or median in two moves (Level 2); find centers from frequency tables and dot plots and compare data sets that differ by one value (Level 3); judge spread - range, interquartile range and standard deviation - and work with totals, missing values and combined groups (Level 4); predict exactly what adding, removing or shifting values does to the mean, median and spread, including tables you cannot list by hand (Level 5); and solve the hardest must-be-true, histogram and unknown-constant problems on time, knowing when Desmos helps and when it cannot (Level 6).