In statistics, a standard deviation is a measure of the variability of a set of data points. It is also used to measure the spread of data from the average value. In data analysis and interpretation, the study of standard Read more
Important mathematical relations of measurement. These are very important mathematical relations. It must be on the tongue of a student . These common relations are seen very frequently in the sum . | Mass 1 Ton = 10 Quintals 1 Read more
Important Squares and their square root. THE STUDENT MUST MEMORISE THIS BY TONGUE. 42 = 16 112 = 121 52 = 25 √(25)=5 62 = 36 √(36)= 6 72 = 49 √(49 ) = 7 82 = 64 √(64)= 8 Read more
