M.Sc.(Geoinformatics)(Semester III)(New) (CBCS)
Examination, 2017
Introduction to Statistical Methods
Day Date: Tuesday, 25-04-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
N.B. Answer any five questions.
All questions carry equal marks.
Question 1 is compulsory and should answered in
the question papers
Answer any two essay questions from 3 4
Answer any two short note question from 6 7
Draw neat labeled diagrams whenever necessary.
Q.1 Fill in the blank with appropriate choice: 14
The origin of statistics can be traced to
State Commerce
Economics Industry
The difference between sample estimate and population parameter
in termed as
Human error Sampling error
Non-sampling error None of the above
A line graph that plot of the class interval and frequency is known
as
Histogram Frequency polygon
Cumulative frequency Relative Distribution
A selection procedure of a sample having no involvement of
probability is known as
Purposive Sampling Judgment Sampling
Subjective Sampling All of the above
Which of the following represents the medium?
First Quartile Fiftieth Percentile
Sixth Decile Third Quartile
The middle value of an ordered series is called
2nd Quartile s
50th percentile All of the above
The total frequency of all values less than the upper class boundary
of a given class interval is called
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Distribution Frequency Total Frequency
Cumulative Frequency None of the above
The mean of squared derivation about the mean is called
Standard derivation Variance
Mean Derivation None of the above
For a negatively skewed distribution, the following is true
Mode Median Mean Median
Mean Mode Mean Mode
10) Limits for correlation coefficient

11) The mean of 5 numbers is 25. 25 is added to each number then
the mean is
5 10 8 Cannot be determined
12) If the number of observation is odd than the median is the value in
the position.




13) In a distribution most of the observation cluster near the
mean and it has a sharp peak.
Mesokurtic Leptokurtic
Platykurtic Skewkurtic
14) If r 0 then the cov(x, is
0 1 1 0.2
Q.2 What is Sampling? Explain different types, their merits and demerits. 14
S
Q.3 What are the different types of correlation? Calculate the Karl
Pearson's coefficient of correlation from the following rainfall data of
different location.
14
Location 1 2 3 4 5 6 7 8 9
Rainfall 200 400 1280 300 320 500 800 1200 1000
Q.4 Compute the standard deviation and the upper quartile of the marks,
obtained by standards in statistics examination.
14
Marks 30-39 40-49 50-59 60-69 70-79 80-89 90-100
No. of students 1 2 11 21 43 32 9
Q.5 Write briefly about: 14
Errors
Arithmetic Mean
Q.6 Write in brief on: 14
Median
Quartiles
Q.7 Write short notes on: 14
Skewness
Range