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SubjectPaid lesson

Tools of economic analysis

ClassNotes Team 10 MIN READUPDATED 4 JUL 2026

Economics SSS 2 First Term

THEME: Structure of the Nigerian Economy

WEEK 1&2

Tools of economic analysis

Performance Objectives

Student should be able to:

  1. Solve problems on
  1. Range
  2. Mean deviation
  3. Variance
  4. Standard deviation

Content

Linear Equations

A linear equation is an equation which consists of only sums of variables and variables which are multiplied by a constant, with no products of variables. All of the variables in the equation must be raised to the power of one. The general form of a linear equation is:

ax+b=0

Where a and b are constants and a≠0. Solving a linear equation means finding the values of x which satisfy the equation (make the expression on the left-hand side of the =sign equal…