neighbourhoods, would this a random sample? [5 Marks]
2. a) Explain the steps involved in planning of a statistical survey? [5 Marks] b) What are the merits & Demerits of Direct personal observation and Indirect Oral Interview? [5 Marks] 3. a) Draw Ogives from the following data and measure the median...
40 25
Income Intervals 2000-2500 2500-3000 3000-3500 3500-4000
No. of Families 25 15 10 5
UNIT-II
MEASURES OF CENTRALTENDENCY:
A measure of centraltendency or an average is very essential and an important...
= 200
200. 250 B = 600/3 = 200
300. 200
------ ------
600. 600
Q.2 Define Mean (X) , State its Merits & Demerits?.[Oct.88, 89,99,90,92, April 91, & 93]
Ans. Mean is Defined as under :-
“Sum of all observation divided by total number of items”.
Formula: - X = 6...
can be found at central part of the range of all values. It is the one which represents the entire data set. Hence, this is called the measure of centraltendency.
In other words, the tendency of data to cluster around a figure which is in central location is known as centraltendency...
/Variability? Out of these which one is the most reliable and why?
FOUR WAYS OF FREQUENCY DISTRIBUTIONS
1) Average value or centraltendency2) Scatter of variability
3) Skewness
4) Kurtosis
CENTRALTENDENCY
The values or measures which lie or fall in the centre or middle of the distribution or data...
Chapter 2Measures of centraltendency
• Different measures of centraltendency
• Proprties, merits and demerits
• Partition Values
Average is a single value which represents the whole data. In other words average is a central value of the data. The arithmetic mean, median, or mode are...
. The environment thus poses, challenge for the management. The managerial efficiency and/or effectiveness is a measure of adaptability to the existing business environment.
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2. What is the exact position of China in so far...
presentation of statistical data. Draft a form of tabulation t show the distribution of population according to i) Community by age, ii) Literacy, iii) Sex, and iv) Marital status.
Q.3. Give a brief note of the measures of centraltendency together with their merits and Demerits. Which is the best measure...
; probability sampling and
non-probability sampling. The merits and demerits of each sampling method
were explained. We discussed the procedure for determining sample size.
We concluded the chapter with the importance of central limit theorem.
7.11 Terminal Questions
1.
2.
3.
4.
5.
6...
1. 2. 3. What is a statistical average? Describe the characteristics of a good statistical average. What are the functions of an average? Discuss the relative merits and demerits of various types of statistical averages. Give the essential requisites of a measure of 'CentralTendency'. Under what...
f 97.50 10
22
=> S = 0.7500
= 0.866
S is called the Standard Error of the Mean. Standard error helps us in: i. Testing of hypothesis ii. Constructing confidence interval for the statistics iii. Giving reliability measure for the statistic by its reciprocal value
Page...
trend.
State different methods for determining trend in a time series.
What is method of least squares?
What is method of moving average?
Mention one merit and one demerit of method of least squares.
Mention one merit and demerit of method of moving average.
What are the methods for determining...
Q1. What are the characteristics of a good measure of centraltendency? [5Marks](b) What are the uses of averages? [5 Marks]Answer:a).
The characteristics of a good measure of centraltendency are:
Present mass data in a concise form
The mass data is condensed to make the data readable and to...
advantage.
2. Non monetary measures : Non monetary measures deal with the real sector for correcting disequilibrium in BOP. Following are the important non monetary measures:
(a) Export promotion : To control adverse BOP the country may adopt export promotion measures which are as follows:
(i...
statistical methods and concepts, collection of data and comparison cannot be done easily. Statistics helps us to compare data collected from different sources. Grand totals, measures of centraltendency, measures of dispersion, graphs and diagrams, coefficient of correlation all provide ample scopes for...
representation of frequency distribution: Histogram, frequency polygon Diagrammatic representation: Simple bar, Subdivided bar, pie diagram.
MEASURES OF CENTRALTENDENCY:
3.1. 3.2. 3.3
Concept of centraltendency. Arithmetic mean: Definition for ungrouped and grouped data, merits and demerits. Median...
Budget g ) Reduction Budget 38. What is Cash Budget? State it functions 39. Explain the concept of Flexible Budget. 40. What is Standard Costing? State its features. Explain its Merits and Demerits. 41. Explain the various Materials Variances. 42. Explain Standard Costing? Explain Material Cost...
able to convey some meaningful conclusion at the first sight. The single value expression or presentation of data is called central value. The values of variable tend to concentrate around the central value, which is also called centraltendency. Whatever measure of centraltendency is selected to...
at: ii
CONTENTS
Page
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
Definitions, Scope and Limitations Introduction to sampling methods Collection of data, Classification and Tabulation Frequency distribution Diagramatic and graphical representation Measures of CentralTendencyMeasures of Dispersion...
and secondary data, Collection of data, Classification and tabulation of data, Diagrammatic and graphic representation of data
Unit IV: Statistical Analysis of Data
Measures of CentralTendency – mean, median, mode and their application in business; Dispersion - measures of dispersion – range...