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Keeping Statistics Honest: How Not to Lie with Statistics

Keeping Statistics Honest: How Not to Lie with Statistics 150 150 Deborah

Overview:  Statistics Are Not Lies The use of statistics has really gotten a bad name.  No less a personage than Mark Twain once said something about lies and statistics, and…

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Limits: Reaching for a Goal

Limits: Reaching for a Goal 150 150 SchoolTutoring Academy

A limit can be a difficult concept to grasp in mathematics, as it is a value that is never reached, but is ‘approached’ by an input, or index of some…

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Scalar and Vector Quantities

Scalar and Vector Quantities 349 144 School Tutoring

Every quantity in physics can be classified as either a scalar or vector. Vectors are quantities that are represented by both a magnitude and a direction. Scalars are quantities that…

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Operations on Complex Numbers

Operations on Complex Numbers 150 150 SchoolTutoring Academy

A number which is of the form a+ib, where a and b are real numbers and i2 =-1, is called a complex number and is usually denoted by z. i.e.…

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3D Spaces: Addition and Subtraction in Cubic Areas

3D Spaces: Addition and Subtraction in Cubic Areas 150 150 SchoolTutoring Academy

Sum of cubes: We can factorize an expression involving sum of cubes using the following formula. a3 + b3 = (a+b) (a2 – ab + b2) Example 1: Factorize the…

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