Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) B.Sc-Agriculture 2020 March Previous Question Papers
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc.(Agriculture) (2014 to 2018) (Sem.?4)
BASIC STATISTICS
Subject Code : BSAG-409
M.Code : 72761
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
Q1. Write briefly :
a) Coefficient of Variation (C.V.)
b) Poisson Distribution
c) Median
d) Assumptions of linear regression
e) Mutually Exclusive Events
f) Non-Probability sampling
g) Degrees of freedom
h) Standard Error
i) Skewness and Kurtosis
j) Alternative Hypothesis
SECTION-B
2. A bag contains 5 white and 8 red balls. Two drawings of 3 balls are made such that (a) the
balls are replaced before the second trial, and (b) the balls are not replaced before the
second trial. Find the probability that the first drawing will give 3 white and second 3
rd
balls in each case.
FirstRanker.com - FirstRanker's Choice
1 | M - 72761 (S2)-2323
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc.(Agriculture) (2014 to 2018) (Sem.?4)
BASIC STATISTICS
Subject Code : BSAG-409
M.Code : 72761
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
Q1. Write briefly :
a) Coefficient of Variation (C.V.)
b) Poisson Distribution
c) Median
d) Assumptions of linear regression
e) Mutually Exclusive Events
f) Non-Probability sampling
g) Degrees of freedom
h) Standard Error
i) Skewness and Kurtosis
j) Alternative Hypothesis
SECTION-B
2. A bag contains 5 white and 8 red balls. Two drawings of 3 balls are made such that (a) the
balls are replaced before the second trial, and (b) the balls are not replaced before the
second trial. Find the probability that the first drawing will give 3 white and second 3
rd
balls in each case.
2 | M - 72761 (S2)-2323
3. Daily income of ten families of a particular place is given below : Find geometric mean and
Harmonic mean from the following data?
85, 70, 15, 75, 500, 8, 45, 250, 40, 36
4. Calculate coefficient of correlation by Karl Pearson?s method and its testing from the
following data ?
X 6 2 10 4 8
Y 9 11 6 8 7
5. Explain briefly the assumptions required to test the equality of two means. Blood pressure
(diastole) are taken on 6 men before and after a full mean and the results are given below
(mm)
BP Before meal 121 119 124 122 123 120
BP After meal 124 122 124 125 127 123
Can it be concluded that blood pressure (diastole) increase average after the intake of full
meal?
6. Define probability. Explain the additive and multiplicative laws of Probability?
SECTION-C
7. An experiment was conducted using Nitrogen (N) and Phosphorous (P). The yields
recorded from each plot are given below. Each treatment combination was applied in two
plots. Analyze the data.
Nitrogen
Phosphorous N
1
N
2
N
3
N
4
P
0
30,34 35,37 38,36 32,34
P
1
32,35 34,38 36,38 32,38
P
2
42,40 38,42 40,42 38,40
8. For the following data an fertilizer (X) and yield (Y)
Fertilizer (X) 20 35 40 45 50 55 60 65 70
Yield (Y) 40 100 128 145 160 170 160 150 140
Fit function Y = b
0
+ b
1
X
1
+ U
9. Define statistics? How it relates with other sciences?
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
FirstRanker.com - FirstRanker's Choice
This post was last modified on 02 April 2020