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Z Score Chart Know More About Stem and Leaf Plot Z Score Chart Use this chart to find the area under a normal curve when finding An approximation for a binomial distribution. Negative z-score - value is to the left of the mean. Positive z-score - value is to the right of the mean. Negative Z Scores Chart, Normal Distribution Table... More

Z Score Table Know More About Ogive Z Score Table Definition of the Standard Normal Distribution The Standard Normal distribution follows a normal distribution and has mean 0 and standard deviation 1 Notice that the distribution is perfectly symmetric about 0. If a distribution is normal but not standard, we can convert a value to the... More

Standard Deviation Formula Know More About How to Calculate Standard Deviation Standard Deviation Formula Standard deviation is a widely used measure of variability or diversity used in statistics and probability theory. It shows how much variation or "dispersion" exists from the average (mean, or expected value). A low standard... More

Z Score Chart Know More About Stem and Leaf Plot Z Score Chart Use this chart to find the area under a normal curve when finding An approximation for a binomial distribution. Negative z-score - value is to the left of the mean. Positive z-score - value is to the right of the mean. Negative Z Scores Chart, Normal Distribution Table... More

Correlation Definition Correlation is the sympathetic movement of two or more variables. That is when a change in one variable is generally accompanied by changes in other variables, either in the same or opposite direction, then the variables are said to be correlated. When we have a data where two or more variables are valued then... More

Integral by Parts In this page we are going to discuss about integration by parts concept. This method is used for performing the integration on the product. If one of the product is unity then the integration on the product can be easily integrable. If the product of the integration are of two different kinds of functions then we... More

Mean Definition Statistics deal with data analysis. The condensation of data is the first step in rendering comprehensible a long series of individual observations. This was made possible by classifying and tabulating the data and then presenting it in the form of frequency distributions. Once the frequency distributions are formed,... More

Standard Deviation Definition Variation (dispersion) is the property of deviation of values from the average. The degree of variation is indicated by the measures of variation. There are various measures of variation and the commonly used are 1) Range 2) Mean deviation 3) Standard Deviation and 4) Quartile deviation. The range is... More

Calculate Critical Value In mathematics, a partial derivative of a function of several variables is its derivative with respect to one of those variables, with the others held constant (as opposed to the total derivative, in which all variables are allowed to vary). Partial derivatives are used in vector calculus and differential... More

Polynomial Equation In mathematics, a polynomial is an expression of finite length constructed from variables (also known as indeterminates) and constants, using only the operations of addition, subtraction, multiplication, and non-negative integer exponents. For example, x2 − x/4 + 7 is a polynomial, but x2 − 4/x + 7x3/2 is not,... More

Critical Values of T Critical value is used in many ways in maths. It is used in calculus, statistics, correlation coefficeint etc. In english language it means " a value having importance to that problem" By using differentiation, a function get differentiated say f ´(x). Now the solutions of f´(x) = 0 are called critical... More

Perfect Square Trinomial Perfect Square Trinomial is the product of two binomials but both the binomials are same. When factoring some quadratics which gives identical factors, that quadratics are Perfect Square Trinomial. The general form of perfect square trinomial is (ax-b) 2 =(ax)2-2axb+b2 and (ax+b) 2=(ax)2+ 2axb + b2. In this,... More

What is Standard Form Standard form is a way of writing down very large or very small numbers easily. 103 = 1000, so 4 × 103 = 4000 . So 4000 can be written as 4 × 10³ . This idea can be used to write even larger numbers down easily in standard form. Small numbers can also be written in standard form. However, instead of the... More

Polynomial Factoring Factoring Polynomials refers to factoring a polynomial into irreducible polynomials over a given field. It gives out the factors that together form a polynomial function. A polynomial function is of the form xn + xn -1 + xn - 2 + . . . . + k = 0, where k is a constant and n is a power. Polynomials are... More

Word Problems Algebra Get answers to all Algebra word problems online with TutorVista. Our online Algebra tutoring program is designed to help you get all the answers to your Algebra word problems giving you the desired edge in excelling in the subject. To gain a proper understanding for algebra, you need to have clear concept over... More

Algebra Questions Get answers to all Algebra word problems online with TutorVista. Our online Algebra tutoring program is designed to help you get all the answers to your Algebra word problems giving you the desired edge in excelling in the subject. To gain a proper understanding for algebra, you need to have clear concept over... More

Factor Trinomials In this article, we study about factoring trinomials. Trinomials are defined in Mathematics an expression containing 3 unlike terms. For example, xz+y-2 is a trinomial, whereas x2-3X-X is not a trinomial as this can be simplified in to a binomial. So for an expression to be a trinomial, we have 3 terms which cannot... More

Graph Linear Equations What is a linear equation: An equation is a condition on a variable. A variable takes on different values; its value is not fixed. Variables are denoted usually by letter of alphabets, such as x, y , z , l , m , n , p etc. From variables we form expression. A linear equation is an algebraic equation in which... More

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