Loyola College M.Sc. Zoology April 2012 Biostatistics Question Paper PDF Download

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

SECOND SEMESTER – APRIL 2012

ZO 2956 – BIOSTATISTICS

 

 

Date : 24-04-2012             Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

PART – A                                          10 x 2 = 20  Marks

 

I Answer ALL the questions:

  1. What is the significance of student t test?
  2. How do you find range?
  3. Explain binomial equation.
  4. Comment on sampling techniques.
  5. What is Hardy Weinburg’s law?
  6. Differentiate primary from secondary data.
  7. What is standard error?
  8. Differentiate histogram from bar diagram.
  9. What is correlation?
  10. Explain degree of freedom?

 

 

PART – B                                    4 x 10 = 40 Marks

 

II Answer any FOUR of the following:

 

  1. What are the different kinds of regression?
  2. What are the components of a table?
  3. Draw a pie diagram for the following data and write its significance.

 

Earthworm 12
Cockroach 11
Millipede 9
Centipede 17
Bugs 16

14   What is skewness and kurtosis?

15   What are the different types of co-efficient of correlation?

 

 

 

 

16   Calculate the chi square for the following table and find if there is any significance between RBC and Hb.

RBC Count Hb Below Normal Hb Above Normal
Below Normal 64 120
Above Normal 141 173

 

 

PART – C                                2 x 20 = 40 Marks

 

III Answer any TWO of the following:

 

  1. Write a note on SPSS applications in bio-statistics.
  2. What is the significance of graphs and diagrams?
  3. By ANOVA find if there is an increase in maize production in different sub species in different plots. Tv=3.49
A B C D
6 7 9 7
8 9 11 6
7 5 8 4
3 7 4 3

 

  1. The following table shows the age x and BP of six individuals. Find regression equation of X on Y and estimate BP of a person of 61, 68 and 75 years respectively.

 

Age (x) 29 41 63 69 80 78
BP (Y) 131 139 140 153 171 133

 

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