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P

Princy 06 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What do you mean by bar graph?

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Chandan replied | 22 Nov

A graph drawn using rectangular bars to show how large each value is.
The bars can be horizontal or vertical.

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S

Sujeet 06 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

Find the class mark of the class 130 - 150?

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Shikha replied | 24 Nov

20.

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Answer

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S

Shantanu 06 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What is Assume Mean Method?

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Chandan replied | 22 Nov

In statistics the assumed mean is a method for calculating the arithmetic mean and standard deviation of a data set. It simplifies calculating accurate values by hand. Its interest today is chiefly historical but it can be used to quickly estimate these statistics.

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Z

Zainab 06 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What is the formula for finding median of odd observation?

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Mamata replied | 24 Nov

Arrange in ascending or descending order for the data.
Find (n+1) /2 th observation where, n is the number of observation.

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A

Aparna 06 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What is the difference between mean, median, mode?

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Mamata replied | 24 Nov

Mean is the Average.
Median is the middle most value either in ascending or descending order.
Mode is the value of highest frequency.

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M

Meghana 06 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What is the relationship between mean, median and mode?

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Mamata replied | 24 Nov

Mode= 3 Median - 2 mean.

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B

Basundhara 03 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Algebra

Simplify [square of (- square of a * cube of b)] * (square of c)?

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Daljit Kaur replied | 25 Nov

(Fourth power of a) (sixth power of b) (c square).

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Mamata replied | 29 Nov

Square of ( -a^2b^3) ) c^2
= a^4b^6c^2
= a fourth b sixth c squares.

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Answer

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P

Prabhu 03 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Volumes

If l, b, h, S and V are length, breadth, height, surface area and volume respectively of a cuboid, prove that: 1/V = 2/S(1/l + 1/b + 1/h)?

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Ram Mohan replied | 4 days ago

If l, b, h, S and V are length, breadth, height, surface area and volume respectively of a cuboid, Then, V = lbh
Let us take the relation S = 2 (lb +bh + lh). Now dividing both sides with V * S, we get:-
1/V = 2 ( lb + bh = lh )/ (V * S) = 2 ( lb + bh = lh )/ (lbh * S) ...... ( Substituting lbh for V)
==> 1/V = =2 [(lb/lbh )+( bh/lbh ) + (lh/ibh )] / S
==> 1/V...  more»
If l, b, h, S and V are length, breadth, height, surface area and volume respectively of a cuboid, Then, V = lbh
Let us take the relation S = 2 (lb +bh + lh). Now dividing both sides with V * S, we get:-
1/V = 2 ( lb + bh = lh )/ (V * S) = 2 ( lb + bh = lh )/ (lbh * S) ...... ( Substituting lbh for V)
==> 1/V = =2 [(lb/lbh )+( bh/lbh ) + (lh/ibh )] / S
==> 1/V = 2/S(1/l + 1/b + 1/h) proved. «less

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Ram Mohan replied | 4 days ago

If l, b, h, S and V are length, breadth, height, surface area and volume respectively of a cuboid, Then
We have S = 2( lb + bh + lh ) and V = lbh
Let us take the relation S = 2(lb +bh + lh).
Now dividing both sides with V * S, we get
1/V = 2 ( lb + bh = lh )/ (V * S) = 2 ( lb + bh +lh )/ (lbh * S) ...... ( after Substituting lbh for V)
==> 1/V = 2 [(lb/lbh...  more»
If l, b, h, S and V are length, breadth, height, surface area and volume respectively of a cuboid, Then
We have S = 2( lb + bh + lh ) and V = lbh
Let us take the relation S = 2(lb +bh + lh).
Now dividing both sides with V * S, we get
1/V = 2 ( lb + bh = lh )/ (V * S) = 2 ( lb + bh +lh )/ (lbh * S) ...... ( after Substituting lbh for V)
==> 1/V = 2 [(lb/lbh )+( bh/lbh ) + (lh/lbh )] / S
==> 1/V = 2/S(1/l + 1/b + 1/h) proved. «less

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V

Show previous answers

Birenkumar replied | 25 Nov

Short method:
The difference between side1 and side 2 is Two and area is 195 so we can do multiplication of side 1 and side 2 up to getting area 195 base area of rectangle = side1×side2 (formula).
Such as 10×12=120 (not answer)
11 x 13 =141(not answer)
13×15 =195 (answer)
Side1 = 13 side2=15.

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Daljit Kaur replied | 25 Nov

13cm, 15cm

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O

Orange 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

Find the mean of the marks of 10 students, having marks as, 75, 66, 69, 76, 110, 25, 52, 96,67, 82?

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S

Sushil 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

Find the mean of first 10 prime numbers?

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K

Kishore 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

Form a discrete series of the following data, then calculate the mean: 21, 32, 22, 25, 18, 20, 24, 30, 19, 21, 17, 24, 18, 25, 17, 23, 22, 21?

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P

Poonam 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

Find the median of 25, 34, 31, 23, 22, 26, 35, 29, 20, 32?

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J

Jainam 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

The following data have been arranged in ascending order of magnitudes: 59, 62, 65, x, x + 2, 72, 85, 94. If the median of the data is 69. Find the value of x?

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V

Vijay 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

The mean of 10, 12, 16, 20, p and 26 is 17. Find the value of p?

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Answer

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R

Reshma 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

The demand of different shirt sizes are given below. Find the modal shirt sizes:


Size
38
39
40
41
42
43
44
No. of persons
26
39
20
15
13
7
5

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K

K 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

The following observations have been arranged in the ascending order. If the median of the data is 63. Find x: 29, 32, 48, 50, x, x +2, x +3, 72, 78, 84, 95?

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R

Reshma 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

Verify the empirical formula for the following data: 2, 3, 2, 5, 6, 3, 4, 7, 4, 9?

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M

Millennium 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

What is the mean of all factors of 12?

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A

Aman 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

What is the mean of the following data: x, (x + 1), (x + 2), (x + 3), (x + 4)?

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Answer

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K

Khushwunder 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

The mean of 8 observation is 30. If an observation 23 is deleted, then what is the value of new mean?

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M

Malvika 05 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Measures of Central Tendency

What is the value of x, if the median of the arranged observations 5, 7, 10, (x + 4), ( x + 6), 18, 20, 22 is 16?

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Answer

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R

Ravi Shankar 06 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

Define histogram with respect to graphical representation?

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J

Jewel 06 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

The class marks distribution are 37, 42, 47, 52, 57. Determine the class size and the class limits of the last class mark?

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N

Naina 06 Nov in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

How does the procedure of drawing a histogram differ when class intervals are unequal in comparison to equal class intervals in a frequency table?

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Answer

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