# Statistics: Difference between two causes of variation

Not what you're looking for?

Explain the difference between the two causes of variation, i.e. special or assignable cause and chance or common cause, and how they can be reduced.

##### Purchase this Solution

##### Solution Summary

Explanation of the difference between the two causes of variation, i.e. special or assignable cause and chance or common cause, and how they can be reduced.

##### Solution Preview

The difference between the two causes of variation - special or assignable cause and chance or common cause - is that common cause is inherent to the process whereas special cause variation is assignable, in that it can be assigned specifically to a special event that can and should be corrected.

Think of the time it may take you to take a shower each day. Let's say your shower takes an average of 5 minutes. Of course, if you took a meticulous spreadsheet of each shower's length you would not be ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

##### Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.