Standard Form of Quadratic Equation: Quadratic equation is a very popular equation of the mathematical domain, which has the separate chapter in the algebra and holds the significant part of the examination questions. A quadratic equation is one which can have up to 2 real solutions, which are basically the values of the variables for the equation. The equation starts from … [Read more...] about Standard Form of Quadratic Equation

# Standard Deviation Formula

## Standard Deviation Problems with Solutions

Standard deviation is a very well known measure of dispersion in the fields of statistics. If you are studying the post metric syllabus of the stats then you are most probably going to come across this measure and it will form the significant part of your exams as well. As, the name suggests standard deviation is basically the measure of the amount of variation or the … [Read more...] about Standard Deviation Problems with Solutions

## Mean, Median & Mode Formula For Grouped Data

Mean, median, mode are the very popular terms in the statics which we study in the basic post matric level of the subject. These are basically the different kinds of the averages which are used at their suitable occasions or the purpose. Mean is the very first and the most popular average that we all use in our daily lives to figure out the average of the sequence of the … [Read more...] about Mean, Median & Mode Formula For Grouped Data

## 3 Easy Ways To Solve (Calculate) Variance

Variance is a very popular measure in the field of statistics, which is considered to be a very significant measure and comes at the advanced level of statistics. It is basically the expected squared deviation of any random variable from the mean measure. Well, with the help of variance you can basically figure out that how spread out the population or the data set is, and it … [Read more...] about 3 Easy Ways To Solve (Calculate) Variance

## Standard Deviation Formula for Ungrouped Data

Standard Deviation Formula for Ungrouped Data: Standard deviation is normally represented by the symbol known as sigma or letter ‘σ’. The calculation of this entity can be found by using a formula called, standard deviation formula, which is used by mathematicians or statisticians. It can be articulated in the same units as the mean or average of all the data points. Standard … [Read more...] about Standard Deviation Formula for Ungrouped Data