FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A rule of thumb is a heuristic guideline that provides simplified advice or some basic rule-set regarding a particular subject or course of action. It is a general principle that gives practical instructions for accomplishing or approaching a certain task.

Detailed explanation-2: -A rule of thumb is a rule or principle that you follow which is not based on exact calculations, but rather on experience. A good rule of thumb is that a broker must generate sales of ten times his salary. As a rule of thumb, a cup of filter coffee contains about 80mg of caffeine.

Detailed explanation-3: -idiom. C1. a practical and approximate way of doing or measuring something: A good rule of thumb is that a portion of rice is two handfuls.

Detailed explanation-4: -Standard deviation = range / 4 This rule of thumb is sometimes used because it allows you to estimate the standard deviation of a dataset by simply using two values (the minimum value and maximum value) instead of every value.

Detailed explanation-5: -Rule of Thumb #1: A larger sample increases the statistical power of the evaluation. Rule of Thumb #2: If the effect size of a program is small, the evaluation needs a larger sample to achieve a given level of power. Rule of Thumb #3: An evaluation of a program with low take-up needs a larger sample.