M.Sc-M.Sc BioTechnology 1st Sem BT - 13 : Quantitative Methods(University of Pune, Pune-2013)
M.Sc. (Semester - I) BIOTECHNOLOGY
SEAT No. :
[Total No. of Pages : 2
BT - 13 : Quantitative Methods
(2005 Pattern)
Time : 3 Hours] [Max. Marks : 80
Instructions to the candidates:
1) All questions are compulsory.
2) Figures to the right indicate full marks.
3) Use of Non - programmable calculator is allowed.
Q1) Attempt the following all subquestions :
a) Explain the “FUNCTIONAL BLOCK DIAGRAM” of computer. [10]
b) Explain the following terms with suitable example : [5]
i) Population
ii) Sample.
Also explain “simple random sampling method”.
c) A thermometer reading 75°F is taken out, where the temperature is 20°F.
4 minutes later, the reading is 30°F. Find the thermometer reading 7 minutes
after the thermometer was brought outside. [5]
Q2) Attempt any TWO of the following.
a) i) Explain any two “OUTPUT” devices. [10]
ii) Compute median and mode for the following data : [5]
Age in years 20-29 30-39 40-49 50-59 60-69 70-79 80-89
No. of patients 55 93 113 90 85 72 34
b) i) What is an “OPERATING SYSTEM”? Explain its functions. [10]
- Estimate the missing term using the relation betweenD & E. [5]
x 0 1 2 3 4y 1 3 9 • 81
P.T.O.
c) i) Describe four different “NETWORK TOPOLOGIES”. [10]
ii) Write the test procedure for testing “Independence of two
attributes”. [3] iii) Show that the following differential equation is exact. [2]
(3xy2- x2)dx + (3x2 y - 6 y2 -1)dy = 0
Q3) Attempt any THREE of the following.
a) i) Describe “OSI reference Model” in brief. [5]
ii) A random sample of 40 emergency reports was selected from the
files of an ambulance service. The mean time (computed from sample) required for ambulance to reach their destinations was 13 minutes with standard deviation 3 minutes.
However the ambulance service claims average time to reach destination 10 minutes.
At 5% level of significance, what is your conclusion? [5] b) i) Distinguish between “RAM” and “ROM”. [5]
ii) Solve the following system of linear equations using matrix inversion :[5]
x + 3y + 3z = 2; x + 4y + 3z = 1; x + 3y + 4z = 3.
c) i) Write a note on “UNIX” operating system. [4]
ii) Define the following terms : [2]
1) Level of significance. 2) Test statistic.
- Evaluateò x3ex dx . [4]
0
d) i) Explain different services of “INTERNET”. [4]
ii) In a study of obesity the following results were obtained from
samples of males and females between ages of 20 and 75 years.[4]
No. of observations No. of overweight
Male 150 21
Female 200 48
Can we conclude from these data that in the sampled populations there
is a difference in proportions, who are overweight? (usea = 5%).
dy
- Find dx if, y = ex (2x3-[2]
tttt
| Earning: Approval pending. |
