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A

Ambar 14/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition)

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Ramesh replied | 01/12/2016

A pie chart is circuler graphical chart divided into sectors each sector shows the relative size of each value.
Frequency polygons are graphical devices for understanding the shapes of distribution.

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Rajendran replied | 02/12/2016

A pie chart (or a circle chart) is a circular statistical graphic, which is divided into slices to illustrate numerical proportion.
Frequency polygons are a graphical device for understanding the shapes of distributions. In a Frequency Polygon, a line graph is drawn by joining all the midpoints of the top of the bars of a histogram.

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Naveen replied | 12/12/2016

Summation of the product (fx)/summation of frequency.

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C N replied | 14/12/2016

Arithmatic Mean See the picture.

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A

Avishkar 14/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition)

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Anshu replied | 02/12/2016

x1+x2+.........+xn/n.

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Mohit replied | 14/12/2016

a+ h* (Fi*Ui/N)

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A

Anubhav 14/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition)

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Sudeesh replied | 26/11/2016

The sum of the deviations, of all the values of x, from their arithmetic mean, is zero. The product of the arithmetic mean and the number of items gives the total of all items.

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Rajendran replied | 27/11/2016

1. The sum of the deviations, of all the values of x, from their arithmetic mean, is zero.
2.The product of the arithmetic mean and the number of items gives the total of all items.
3. If each observation is increased by p, then the new mean = bar x + p
4. If each observation is decreased by p, then the new mean - bar x - p etc

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T

Thejas 14/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition)

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Vundhyala replied | 14/12/2016

Mean is the average value of the data whereas median is the middlemost value.

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Mohit replied | 14/12/2016

Mean is the average value of the data whereas median is the middlemost value.

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Ranganath replied | 30/12/2016

Not possible because, sum of all 3 angles together, should be 180 degrees.
Here, sum of the the given 2 angles is > 180 degrees.

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Parshva replied | 01 Jan

To form a triangle the sum of interior angles of a triangle is equal to 180 but as the scenario here is the sum of only given two triangles is 185 degree then definitely it is not possible to build a triangle with given angles.

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S

Sandeep 14/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition)

What do you mean by central tendency?

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P

Parveen replied | 14/12/2016

Central tendency means how much the data is dispersed from centre.

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Hyder replied | 14/12/2016

In statistics, a central tendency (or, more commonly, a measure of central tendency) is a central or typical value for a probability distribution. It may also be called a center or location of the distribution. The most common measures of central tendency are the arithmetic mean, the median and the mode.

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S

Sk 14/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition)

What is the relation between Mean, Median and Mode?

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Ankush replied | 25/11/2016

Mode= 3 Median - 2 Mean.

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Mamata replied | 29/11/2016

Mode= 3 Median - 2 Mean.

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S

Shilpi 14/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition)

What are the formulae for Median:
(i) For Simple Distribution
(ii) For Unclassified Frequency Distribution
(iii) For Classified Data ?

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Rahul replied | 13/12/2016

Primary data is one which is collected for the first time by the researcher while secondary data is the data already collected or produce by others.

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Hyder replied | 14/12/2016

Median = {(n + 1) ÷ 2}th value.

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P

Prince 14/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition)

What is the difference between Combined mean and Weighted Arithmetic mean?

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Abhilash replied | 14/12/2016

Combining like terms is a mathematical process used to simplify an expression or to add or subtract polynomials
The weighted arithmetic mean is similar to an ordinary arithmetic mean (the most common type of average), except that instead of each of the data points contributing equally to the final average, some data points contribute more than others.

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Parveen replied | 14/12/2016

A weighted mean is a kind of average. Instead of each data point contributing equally to the final mean, some data points contribute more “weight” than others. If all the weights are equal, then the weighted mean equals the arithmetic mean (the regular “average” you’re used to). Weighted means are very common in statistics, especially when studying populations.

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K

K 13/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Reflection

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Abhishek replied | 10/12/2016

2nd.

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Ranganath replied | 30/12/2016

Its the 2nd quadrant (IInd).

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S

Sahiba 12/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Symmetry

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Mamata replied | 10/12/2016

Equilateral triangle has equal side. So, measure 6 cm on compass and draw 3 sides and join them and named it as AB , BC, CA.

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Shahid replied | 10/12/2016

AB= 6 cm, BC=6 cm,CA=6 cm.

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K

Krishan 12/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Symmetry

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Dimple Aggarwal replied | 01/12/2016

A, B, C, D, E,H, I, K, M, O, T, U, V, W, X, Y.

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Nisarg replied | 01/12/2016

English alphabets having symmetry are:
A, B, C, D, E, K, M, T, U, V, W, Y have one line of symmetry.
H, I, X have two lines of symmetry.
And F, G, J, L, N, P, Q, R, S, Z have neither horizontal nor vertical lines of symmetry.

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B

Bimal 13/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Reflection

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Rama Krishna replied | 08/12/2016

Simply Called as "Origin".

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Pooja replied | 10 Apr

Origin

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I

Igno 13/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Similarity

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Bindu replied | 07/12/2016

RHS congruence rule: The hypotenuse and one other side of the first triangle is equal to the hypotenuse and corresponding side of the second triangle.
SSS Congruence Rule: the triangles are congruent if all three sides in one triangle is equal to the all three sides of the second triangle.
SAS Congruence rule: Triangles are congruent if any pair of corresponding sides and...  more»
RHS congruence rule: The hypotenuse and one other side of the first triangle is equal to the hypotenuse and corresponding side of the second triangle.
SSS Congruence Rule: the triangles are congruent if all three sides in one triangle is equal to the all three sides of the second triangle.
SAS Congruence rule: Triangles are congruent if any pair of corresponding sides and it's included angles are equal in both triangles. «less

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Mahfooz Alam replied | 08/12/2016

If two or more triangles have same shape and size they are called congruent triangles.
There are four types of congruency rules.
If two sides of a triangle equal to other's corresponding sides angles between their corresponding sides also
Equal they will be congruent.
If two triangles have all corresponding sides are equal they're called congruent triangles.

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S

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Krishnapal replied | 06/12/2016

It will be cone shaped object. If you have any problem then reach to me and ask.

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Avanindra replied | 10/12/2016

A cone.

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N

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Barsha replied | 21/11/2016

Trapezium.

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Rajendran replied | 25/11/2016

Trapezium.

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Y

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Jyoti replied | 06/12/2016

1. Using the Angle-Angle Theorem.
2. Using the Side-Angle-Side Theorem.
3. Using the Side-Side-Side Theorem.
4. Writing a Proof.

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Ankit replied | 06/12/2016

There are the following steps to prove that two triangles are similar:-
1. AAA Test (angle angle angle):
All three pairs of corresponding angles are the same.
2. SSS Test (side side side):
All three pairs of corresponding sides are in the same proportion.
3. SAS Test (side angle side):
Two pairs of sides are in the same proportion and the angle...  more»
There are the following steps to prove that two triangles are similar:-
1. AAA Test (angle angle angle):
All three pairs of corresponding angles are the same.
2. SSS Test (side side side):
All three pairs of corresponding sides are in the same proportion.
3. SAS Test (side angle side):
Two pairs of sides are in the same proportion and the angle between them is equal. «less

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N

Neha 11/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Sales Tax and VAT

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Abhishek replied | 10/12/2016

Money that is charged by government on goods & services.

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CA Prashanth replied | 29 Mar

For example, if you purchase a new television for Rs. 400 and live in an area where the sales tax is 7%, you would pay Rs. 28 in sales tax. Your total bill would be Rs. 428.
It is important to note that sales tax is not revenue that the seller gets to keep. The seller is simply collecting the tax as part of their agreement to do business in that city or state. Every month or...  more»
For example, if you purchase a new television for Rs. 400 and live in an area where the sales tax is 7%, you would pay Rs. 28 in sales tax. Your total bill would be Rs. 428.
It is important to note that sales tax is not revenue that the seller gets to keep. The seller is simply collecting the tax as part of their agreement to do business in that city or state. Every month or quarter the seller will have to prepare forms and pay in the money they collected for taxes to the state or local government. «less

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R

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Souvik replied | 06/12/2016

Rs. 594.44 as monthly installment for 6 years.

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Rajesh replied | 07/12/2016

Rs. 49101.12.

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T

Thileshwari 12/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Symmetry

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Chilla Rajesh replied | 01/12/2016

2.

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Rajendran replied | 02/12/2016

There are 2 edges in a cylinder

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P

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Muraleedharan replied | 20/11/2016

Edge.

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Sreedevi replied | 21/11/2016

The common portion of two adjacent faces of a cuboid is known as edge

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B

Bijoy 13/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Similarity

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Chandan replied | 05/12/2016

Two triangles are similar if they have:
-All their angles equal.
-Corresponding sides are in the same ratio.

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Chilla Rajesh replied | 11/12/2016

If the two triangles are similar, two triangles corresponding angles are equal and corresponding sides are in same ratio.

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J

Jasleen 13/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Similarity

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Minita replied | 21/11/2016

For triangles ABC nd PQR to be similar, any side of ABC/ any side of PQR = area of ABC/ area of PQR

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Mohamed Fatin replied | 21/11/2016

SAS, AAA, AA, SSS

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B

Bijoy 13/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Similarity

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S

Siddhant replied | 22/11/2016

The square on the hypotenuse of right angled triangle is equal to the square of remaining two sides of triangle is called pythagoras theorem

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Chilla Rajesh replied | 11/12/2016

In a Right angle triangle square of hyp = square of base + square of height.

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