Sardar Krushinagar Dantiwada Agricultural Uiversity 2010 B.Sc Agriculture for competitive - university paper
MULTIPLE option ques.
B.Sc Agriculture
(For Competitive Examination)
The relation ranging from the mean and variance of chi-square distn with n d.f. is
a. mean = two variance
b. two mean = variance
c. mean = variance
d. none of the above
Most of the non-parametric methods utilize measurements on
a. interval scale
b. ratio scale
c. ordinal scale
d. nominal scale
Two random variables X and Y are stated to be independent if
a. E(XY) = 1
b. E(XY) = 0
c. E(XY) = E(X).E(Y)
d. E(XY) = any constant value
Chi-square distribution curve in respect of symmetry is
a. positively skew
b. negatively skew
c. symmetrical
d. any of the above
Coefficient of skewness for normal distribution is
a. greater than 3
b. less than 3
c. equal to 3
d. zero
If ?yx and ?xy are 2 regression coefficients, they have :
a. identical sign
b. opposite sign
c. either identical or opposite signs
d. nothing can be stated
A sample consists of :
a. all units of the population
b. 50% units of the population
c. 5% units of the population
d. any fraction of the population
The number of all possible samples of size 2 from a population of four units as:
a. 2 (b) 4 (c) eight (d) 12
A population consisting of all the items which are physically current is called :
a. hypothetical population
b. real population
c. infinite population
d. none of the above
A function of variates for estimating a parameter is called :
a. an estimate
b. an estimator
c. a frame
d. a statistic
If all the observations in a set of observations are same, the variance of the set of values is :
a. zero
b. one
c. infinity
d. not possible to compute
Lichen is a symbiotic association ranging from fungi and
a) Algae
b) Virus
c) Protozoa
d) Plants
Frankia belongs to which of the subsequent groups of microorganisms
a) Cyanobacteria
b) Green algae
c) Methanobacterium
d) Actinomycetes
Which of the subsequent microorganisms show associative symbiosis
a) Azotobacter
b) Azospirillum
c) Spirulina
d) Rhizobium
Streptomycin was discovered by
a) Waksman
b) Pasteur
c) Leeuwenhoek
d) Winogradsky
Penicillin was discovered by
a) Alexander Fleming
b) Lederberg
c) Galileo
d) Joseph Lister
Bacteriophage belong to which group of microorganism
a) Bacteria
b) Virus
c) Fungi
d) Cyanobacteria
The term Rhizosphere was coined by
a) Hiltner
b) Waksman
c) Ruinen
d) Kary Mullis
The use of condenser in microscope was introduced by
a) Abbe
b) Pasteur
c) Adolf Mayer
d) Watson and Crick
Blue mold rot in bread is caused by
a) Penicillium
b) Rhizopus
c) Mucor
d) Salmonella
Spontaneous generation theory was finally disproved by
a) Louis Pasteur
b) Robert Koch
c) Paul Ehrlich
d) Metchnikoff
Ray fungi is a different name of which of the subsequent microorganisms
a) Actinomycetes
b) Cyanobacteria
c) Fungus
d) Lichen
MULTIPLE CHOICE QUESTIONS
B.Sc Agriculture
(For Competitive Examination)
The relation between the mean and variance of chi-square distn with n d.f. is
a. mean = 2 variance
b. 2 mean = variance
c. mean = variance
d. none of the above
Most of the non-parametric methods utilize measurements on
a. interval scale
b. ratio scale
c. ordinal scale
d. nominal scale
Two random variables X and Y are said to be independent if
a. E(XY) = 1
b. E(XY) = 0
c. E(XY) = E(X).E(Y)
d. E(XY) = any constant value
Chi-square distribution curve in respect of symmetry is
a. positively skew
b. negatively skew
c. symmetrical
d. any of the above
Coefficient of skewness for normal distribution is
a. greater than 3
b. less than 3
c. equal to 3
d. zero
If byx and bxy are two regression coefficients, they have :
a. same sign
b. opposite sign
c. either same or opposite signs
d. nothing can be said
A sample consists of :
a. all units of the population
b. 50% units of the population
c. 5% units of the population
d. any fraction of the population
The number of all possible samples of size two from a population of 4 units as:
a. 2 (b) 4 (c) 8 (d) 12
A population consisting of all the items which are physically present is called :
a. hypothetical population
b. real population
c. infinite population
d. none of the above
A function of variates for estimating a parameter is called :
a. an estimate
b. an estimator
c. a frame
d. a statistic
If all the observations in a set of observations are same, the variance of the set of values is :
a. zero
b. one
c. infinity
d. not possible to calculate
Lichen is a symbiotic association between fungi and
a) Algae
b) Virus
c) Protozoa
d) Plants
Frankia belongs to which of the following groups of microorganisms
a) Cyanobacteria
b) Green algae
c) Methanobacterium
d) Actinomycetes
Which of the following microorganisms show associative symbiosis
a) Azotobacter
b) Azospirillum
c) Spirulina
d) Rhizobium
Streptomycin was discovered by
a) Waksman
b) Pasteur
c) Leeuwenhoek
d) Winogradsky
Penicillin was discovered by
a) Alexander Fleming
b) Lederberg
c) Galileo
d) Joseph Lister
Bacteriophage belong to which group of microorganism
a) Bacteria
b) Virus
c) Fungi
d) Cyanobacteria
The term Rhizosphere was coined by
a) Hiltner
b) Waksman
c) Ruinen
d) Kary Mullis
The use of condenser in microscope was introduced by
a) Abbe
b) Pasteur
c) Adolf Mayer
d) Watson and Crick
Blue mold rot in bread is caused by
a) Penicillium
b) Rhizopus
c) Mucor
d) Salmonella
Spontaneous generation theory was finally disproved by
a) Louis Pasteur
b) Robert Koch
c) Paul Ehrlich
d) Metchnikoff
Ray fungi is another name of which of the following microorganisms
a) Actinomycetes
b) Cyanobacteria
c) Fungus
d) Lichen
| Earning: Approval pending. |
