With the improvement of communication & know-how, help online or online tutoring has gained a lot importance as it benefits. Only the difference is that in Online help the student & tutor does not meet head to head but meets through multimedia devices like Webcams, Microphone, Headset etc with the help of net service. But this technique of teaching can also benefit in the same way.

In free Online help the scholars and teachers meets through net & tutors can document & clear the doubts of the scholars like tutors do in the traditional technique of tutoring. Here the things can be cleared through e-meeting.

Help with Statistics

Learn about Statistics in today's post and get some statistics help.

Statistics is the study of data collection. There are different statistics formulas in the field of statistics:

Statistics mean formula
Population Variance
Population Standard Deviation
Sample Mean
Sample Proportion

and so on.

For more help you can go for an online tutor as well. You can connect with a math tutor online and avail your help.

Do post your comments.

Math online activity

Lets have a look at free statistics homework help
In statistics, the statue non-parametric statistics covers a extent of topics:

* system supply methods which do not rely on assumptions that the collection are raddled from a supposal quantity organization. As much it is the word of parametric statistics. It includes non-parametric statistical models, reasoning and statistical tests, get help with trigonometry help free
* non-parametric datum can mean to a statistic (a duty on a sampling) whose rendition does not depend on the population trial any parametrized distributions. Statistics supported on the ranks of observations are one representative of much statistics and these measure a exchange enactment in galore non-parametric approaches. Also you can get help with free trigonometry answers
* non-parametric abnormalcy refers to modeling where the artifact of the relation between variables is aerated non-parametrically, but where nevertheless there may be parametric assumptions roughly the spacing of modelling residuals.

Solving math online problems

Word problems can be further analysed by examining their linguistic properties (Level a), their logico-mathematical properties (Level b) or their symbolic representations (Level c). Linguistic properties can include such variables as the number of words in the problem or the mean sentence length. Get help with online precalculus homework

Solving word problems can be divided into two main parts. For each part you would need some tools and techniques to help you “divide and conquer”.

This allows the student to decide which operators to use: Addition, Subtraction, Multiplication or Division.

In our next post get more help with solved precalculus problems

Learning Standard deviation

If a student wants to learning standard deviation, he should have a clear idea about in arithmetic mean and deviation. In this, we are going to learning standard deviation with some example problems as shown below.

In probability theory and statistics, the standard deviation of a statistical population, a data set, or a probability distribution is the square root of its variance. Standard deviation is a widely used measure of the variability or dispersion, being algebraically more tractable though practically less robust than the expected deviation or average absolute deviation.

A standard deviation is a statistical data of measure which can variability and spread. Standard deviation is a deviation of root mean square for the values in the arithmetic mean. Also get more help with ln x If any student wants help in standard deviation, he should have a clear idea about in arithmetic mean and deviation. In this, we are going to see define standard deviation with example problems for help.

Pemutation and Combination

Todays section is all about Permutation and Combination.

The number of permutations of a set of n element is denoted n! A permutation of a finite set a1 a2 an is an arrangement of its elements. For example, if S= A B C then ABC , CAB , CBA are three different permutations of S . Permutation means arrangement of things. The word arrangement is used, if the order of things is considered. The permutation formula is given as:-


Combination means selection of things. The word selection is used, when the order of things has no importance.

There are two types of combinations

Combinations with Repetition: Actually, these are the hardest to explain, so I will come back to this later.

Combinations without Repetition: This is how lotteries work. The numbers are drawn one at a time, and if you have the lucky numbers (no matter what order) you win!

Solving Linear combination associates with the families of vectors called vector spaces, and with functions contain one input vector and output vector, according to definite rules. Linear combination deals with the theory of systems of linear equations, determinants, linear transformations, vector spaces and matrices.

CENTROID

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The centroid, geometric center, or barycenter of a plane figure or two-dimensional shape X is the intersection of all straight lines that divide X into two parts of equal moment about the line.

The geometric centroid of a convex object always lies in the object. A non-convex object might have a centroid that is outside the figure itself. The centroid of a ring or a bowl , for example, lies in the object's central void.

The centroid of a triangle is the point through which all the mass of a triangular plate seems to act. Also known as its 'center of gravity' , 'center of mass' , or barycenter

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The polygon centroid with uniform density can be computed as the weighted sum of the centroids of a partition of the polygon into triangles.

Binomial Coefficient

The Binomial theorem gives the coefficients of the product of n equal binomials:

(x + b)n = (x + b)(x + b)• • • (x + b).

If we expanded

(x + b)4

for example, then before adding the like terms, we would find term in

x4, x3b, x²b², xb3, and b4.

A binomial coefficient equals the number of combinations of r items that can be selected from a set of n items. It also represents an entry in Pascal’s triangle. These numbers are called binomial coefficients because they are coefficients in the Binomial theorem.


What the binomial theorem does is tell how many terms there are of each kind -- it adds those like terms. Those are the binomial coefficients.

We will see that determining those coefficients depends on the theory of combinations.

Binomial coefficient is intimately related to Bernoulli numbers, Catalán numbers, Fibonacci numbers, statistics and a host of combinatoric problems.

DISTANCE FORMULA

Distance is a numerical description of how far apart objects are.

The main purpose of the distance formula is to measure the distance between two points using the Pythagoras Theorem. Without the distance formula, it is not always possible to measure the exact distance if a measuring tool like the ruler is not available. Instead, the distance formula makes use of relative coordinate points that are given to allow us to calculate the distance.


The formula of distance can be obtained by creating a triangle and using the Pythagorean Theorem to find the length of the hypotenuse. The hypotenuse of the triangle will be the distance between the two points.

The distance formula math is a very handy tool while calculating the distance between any two locations and is commonly used in geometry both practically and during learning. Distance formula questions are very common and students should be well aware of how to use the distance formula. It is also possible to calculate the radius of a circle using the distance formula if you know the location of the midpoint and the location of a point on the circumference.

GEOMETRIC FORMULAS

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Geometry is a part of mathematics concerned with questions of size, shape, relative position of figures, and the properties of space. Geometry is one of the oldest sciences. A formula (plural: formulas or formulae is an entity constructed using the symbols and formation rules of a given logical language. Formulae are applied to provide a mathematical solution for real world problems.

There are many geometric formulas, and they relate height, width, length, or radius, etc, to perimeter, area, surface area, or volume, etc.

Listed below are some Geometric Formulas.

Formula to calculate area of a Parallelogram.

Area = base*height

Formula to calculate Area of a Triangle

Area = ½ of the base * height

Formula to calculate Area of a Circle.

Area= 2*pi*r²

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Area of a Rectangle formula

Area= length*width