Exam Details

Subject mathematics and biostatistics
Paper
Exam / Course m.sc bioinformatics
Department
Organization alagappa university
Position
Exam Date November, 2017
City, State tamil nadu, karaikudi


Question Paper

M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Bioinformatics
MATHEMATICS AND BIOSTATISTICS
(CBCS 2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
All questions carry equal marks.
1. Define Sample Space.
3. Define Standard Deviation.
4. What is Interquartile range?
5. What is sampling error and how do you reduce sampling
error?
7. Define binormal distribution.
8. Write down two examples of non-probability samples.
Sub. Code
502103
RW-845
2
Sp 6
9. What is Bayes theorem?
10. When do you prefer to use Spearman's rank correlation?
Give an example?
Part B x 5 25)
Answer all questions, choosing either or
All questions carry equal marks.
13. Find the standard deviation for the following
distribution.
Age 20-25 25-30 30-35 35-40 40-45 45-50
No.of. persons 170 110 80 45 40 45
Or
Distinguish between Mean Deviation and Standard
Deviation.
14. Differentiate between probability samples and
non-probability samples.
Or
If the first quartile is 142 and the quartile deviation
is 18, find the median, assuming the distribution to
be symmetrical.
RW-845
3
Sp 6
15. When do you prefer to use Students test? Give
an example?
Or
List out various types of correlation?
Part C x 10 30)
Answer any three questions.
All questions carry equal marks.
17. Discuss about DeMoivre's theorem and its application.
18. Write short notes on
Principles and Techniques of sampling
Sampling and Non-Sampling errors.
19. What do you understand by Chi-Square and Students
test? Write their different applications in Biology?
20. Define correlation? What is the purpose of Karl Pearson
correlation? List out the comparison between Karl
Pearson and spearman Rank correlation?
——————


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