21: Math Review for Introductory Statistics Last updated Save as PDF Page ID 36280 Larry Green Lake Tahoe Community College 21.1: Decimals Fractions and Percents 21.1.1: Comparing Fractions, Decimals, and Percents 21.1.2: Converting Between Fractions, Decimals and Percents 21.1.3: Decimals- Rounding and Scientific Notation 21.1.4: Using Fractions, Decimals and Percents to Describe Charts 21.2: The Number Line 21.2.1: Distance between Two Points on a Number Line 21.2.2: Plotting Points and Intervals on the Number Line 21.2.3: Represent an Inequality as an Interval on a Number Line 21.2.4: The Midpoint 21.3: Operations on Numbers 21.3.1: Area of a Rectangle 21.3.2: Factorials and Combination Notation 21.3.3: Order of Operations 21.3.4: Order of Operations in Expressions and Formulas 21.3.5: Perform Signed Number Arithmetic 21.3.6: Powers and Roots 21.3.7: Using Summation Notation 21.4: Sets 21.4.1: Set Notation 21.4.2: The Complement of a Set 21.4.3: The Union and Intersection of Two Sets 21.4.4: Venn Diagrams 21.5: Expressions, Equations and Inequalities 21.5.1: Evaluate Algebraic Expressions 21.5.2: Inequalities and Midpoints 21.5.3: Solve Equations with Roots 21.5.4: Solving Linear Equations in One Variable 21.6: Graphing Points and Lines in Two Dimensions 21.6.1: Finding Residuals 21.6.2: Find the Equation of a Line given its Graph 21.6.3: Find y given x and the Equation of a Line 21.6.4: Graph a Line given its Equation 21.6.5: Interpreting the Slope of a Line 21.6.6: Interpreting the y-intercept of a Line 21.6.7: Plot an Ordered Pair