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Kamal replied | 21/11/2016

First five natural numbers are 1,2,3,4 & 5
total number of terms is 5.
therefore, mean= (1+2+3+4+5) / 5

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Aarthi replied | 05/12/2016

1+2+3+4+5=15. Mean = 15/5 = 3.

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Princy 06/11/2016 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 | 22/11/2016

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

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L

Laxmi 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

Define frequency polygon?

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Neelabh Tiwari replied | 03/12/2016

Frequency polygon is a graphical device which is used for understanding the shapes of distributions. It also give the idea about the data distribution.

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S

Sujeet 06/11/2016 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 | 24/11/2016

20.

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J

Jacob 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

Bar diagram is a ______ dimensional diagram.

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Kusuma replied | 01/12/2016

Both 2 and 3 dimensional diagram.

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S

Shantanu 06/11/2016 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 | 22/11/2016

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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N

Nandita 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

Find the mean daily expenditure on food by a suitable method of a given data:


Daily expenditure
100 - 150
150 - 200
200 - 250
250 - 300
300 - 350
No. of households
4
5
12
2
2

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Abhijeet Kumar replied | 02/12/2016

211

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Answer

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S

Srinika 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

Define modal class?

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Abhijeet Kumar replied | 02/12/2016

Modal class are those class in which frequency occurs most.

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Z

Zainab 06/11/2016 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 | 24/11/2016

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 06/11/2016 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 | 24/11/2016

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 06/11/2016 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 | 24/11/2016

Mode= 3 Median - 2 mean.

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R

Ravi Shankar 06/11/2016 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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B

Bharamani 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What is the formula for finding class mark for a class interval?

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Answer

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J

Jewel 06/11/2016 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 06/11/2016 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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U

Utpal 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What is the formula for finding the mean of group data?

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Answer

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K

Kalpana 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What is the formula for finding the mean of a grouped data with class interval as direct method?

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Answer

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S

Santosh 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What is the formula for finding mean as assume mean method?

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N

Nimesh 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What is the formula for finding the mode of a grouped data?

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S

Srinitha 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

The wickets taken by a bowler in 10 cricket matches are as follows:
2, 6, 4, 5, 0, 2, 1, 3, 2, 3. Find the mode of data?

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R

Rema 06/11/2016 in  Class IX-X Tuition, Mathematics(Class IX-X Tuition), Graphical Representation of Data

What is the formula for median of even observation?

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