KPH, or taps for hour, serve to estimate how many times you press the keys on a keyboard of computer or typewriter while one hour. That indication gives more reliable view of the speed and accuracy of typist than words for minute. Because words have different lengths, KPH helps to estimate the real activity. It […]

The SAT scores from 400 until 1600. It is made up of amount of two parts: Math and Reading-Writing based on rates. Each from those parts ranges between 200 and 800 points. One also calls the Reading-Writing part EBRW or section of English. The whole score coincides with percentile rank. That shows to the student […]

The class grades are the final points that you receive after ending a quarter semester or whole year of course. They usually come from various parts, for instance homework, classwork, tests, quizzes and the final exam. Each of those parts is a percentage of the whole grade. In a system based on percentages, every task […]

Goodreads ratings play a big role in how readers pick their next book. A book with 3.96 stars seems to belong to another group than one with 4.01 That small difference weighs more than you expect. It is a quirk of human thought, like why stores set prices at X.99 instead of rounding up. Many […]