Punjab Technical University 2010-2nd Sem B.Sc BioInformatics (Bio - Informatics) (nd) BIO - STATISTICS - Question Paper
Total No. of Questions : 13] [Total No. of Pages : 04
Roll No.......................
J-3033[S-33] [2037] B.Sc. (Bio - Informatics) (Semester - 2nd) BIO - STATISTICS (B.Sc. BI - 201)
Time : 03 Hours Maximum Marks : 75
Instruction to Candidates:
1) Section - A is compulsory.
2) Attempt any Nine questions from Section - B.
Section - A
a) Write short note on importance of statistics in Bio-informatics.
b) It is intended to compare the variability of height of indivisuals with the weight of indivisuals. Which measure you will use and why.
c) Describe the procedure to determine Mean Deviation.
d) Define logarithm and hence find log of 32 to the base V2.
e) State different properties of logarithm.
f) Define probability and state its properties.
g) Define mutually exclusive events and Independent events and clasify the concept with suitable examples.
h) State the laws of probability and elaborate it with suitable examples.
i) State the assumptions of analysis of variance.
j) State the conditions for the use of Chi-square test.
k) Give the advantages and disadvantages of factorial experiments.
l) Define main effect and interaction effect.
m) Give the relationships between correlation coefficient and regression coefficients.
n) Write short note on the method of least squares.
o) Define the terms
stimulus, subject, Dose and Response as used in Bio-assay.
5 7 1
Q2) Find the value of 2 log log + 2log3 + log49
(Base = 10) 34 2
Q3) Describe the procedure of analysis of variance of one-way classification.
Q4) A box contains 6 red, 4 white and 5 black balls. Four balls are drawn at random. Find the probability that amongst the balls drawn, there is at least one ball of each colour.
Q5) The percentage of marks obtained in a course and the percentage of
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attendance of ten randomly selected students were | |||||||||||||||||||||||||||||||||
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Find the simple regression equation of % marks obtained on % attendance. |
Q6) Describe any one method of bio-assay.
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Q7) Given below are the observations on 5 strains of wheat at 4 locations. | ||||||||||||||||||||||||||||||||||
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Test, if all the strains are equivalent. | ||||||||||||||||||||||||||||||||||
Q8) In a right angled triangle, the lengths of the sides containing the right angle are a and b. With mid-points of each side as the centre, three semi-circular areas are drawn outside the triangle. Find the total area, enclosed.
Q9) A rectangular reservoir is 54m x 10m x 10m. An empty pipe, of circular cross-section, is of radius 3cms; and the water runs through the pipe at 20m per second. Find the time, the empty pipe will tabe to empty the reservoir full of water.
Q10) The frequency distribution of expenditure, on the previous day, on a particular food item by the families in a locality was as follows :
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Find its coefficient of variation. |
Q11) Use Fishers exact test to test the effectiveness of inocculation Vs. Not-inocculation, on the basis of following summarised results of independent samples.
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Inocculated |
Not-inocculated | |
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Died |
1 |
6 |
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Survived |
7 |
2 |
Q12) A random sample of 150 farmers was categarised with respect to farm size and the extent of mechanisation as follows :
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Farm size |
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Test, if the extent of mechanisation is related to farm size. | ||||||||||||||||||||
Q13) The observations on treatment combinations of 23 factorial experiment with factors A, B and C were as follows :
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Analyse the data and interpret your results. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
J-3033[S-33] -4-
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Attachment: |
| Earning: Approval pending. |
