Agricultural Statistics MCQ

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• An extension education job is
  ক

  To educate the people

  খ

  To advice the urban people

  গ

  To advice the rural people

  ঘ

  All of these
• The non-parametric test used for two independent samples is
  ক

  t-test

  খ

  z-test

  গ

  F-test

  ঘ

  Mann-Whitney U-test
• The optimum plot size in the experiment is/are determined by
  ক

  Maximum curvative method

  খ

  Fair field Smith's variance law

  গ

  Both A and B

  ঘ

  Uniformity trial
• The range of correlation coefficient lies between
  ক

  0 to 100

  খ

  0 to 1

  গ

  0 to ∞

  ঘ

  None of these
• In a two-dimensional diagram
  ক

  Only height is considered

  খ

  Only width is considered

  গ

  Height, width and thickness are considered

  ঘ

  Both height and width are considered
• In the field experimentation, local control is used for
  ক

  Validity of estimate of error

  খ

  Validity of treatment effects

  গ

  Diminution of error

  ঘ

  All of these
• A number is selected from 1 to 100 at random. The probability of its being multiple of 4 is
  ক

  1

  খ

  0.04

  গ

  0.25

  ঘ

  0.24
• In its present usage, the word statistics is
  ক

  A decade old

  খ

  a century old

  গ

  two centuries old

  ঘ

  None of these
• In case of normal distribution X ± 20 covers
  ক

  25.45%

  খ

  99.70%

  গ

  94.45%

  ঘ

  99%
• National Extension Service in India was established in
  ক

  1950

  খ

  1953

  গ

  1963

  ঘ

  1952
• For providing the precise and reliable scientific information in simple language the extension system used is
  ক

  Charts

  খ

  Demonstration

  গ

  Leaflet

  ঘ

  None of these
• Analysis of variance technique originated in
  ক

  Industrial research

  খ

  Biological research

  গ

  Agrarian research

  ঘ

  None of these
• If net reproduction rate is less than 1, the population will have tendency
  ক

  Increase

  খ

  Decrease

  গ

  Constant

  ঘ

  None of these
• In a experiment, a treatment requires large area and b treatment requires smaller area (different precision), which design is most appropriate
  ক

  Split plot design

  খ

  LSD

  গ

  Augmented design

  ঘ

  Strip plot design
• Zamindari system was introduced by
  ক

  Mugals

  খ

  British

  গ

  Dutch

  ঘ

  Frenches
• The extension activity was started first time in
  ক

  USA

  খ

  Russia

  গ

  Germany

  ঘ

  India
• In a contingency table, degrees of freedom are determined by
  ক

  (r - 1) : (c - 1)

  খ

  (r - 1), (c + 1)

  গ

  cr

  ঘ

  (r + 1) = (c + 1)
• If X₁ ∼ N (2, 1) and X₂ ∼ N (3, 1), then X₁ + X₂ will be a normal variate whose mean will be
  ক

  5

  খ

  2

  গ

  1

  ঘ

  - 1
• Three letters to each of which corresponds an envelope are placed in the envelopes at random. The probability that all letters are not placed in the right envelope will be
  ক

  ¹/₃

  খ

  ²/₃

  গ

  ⁵/₆

  ঘ

  ¹/₁₃
• Extension work must be based on
  ক

  The interest of Gram Pradhan

  খ

  The interest of BDO

  গ

  The needs and interest of the people

  ঘ

  None of the above
• Geometric mean of a given series is always less than its
  ক

  Harmonic mean

  খ

  Geometric mean

  গ

  Arithmetic mean

  ঘ

  Weighed harmonic mean
• Coefficient of determination is defined as
  ক

  r³

  খ

  r²

  গ

  1 + r²

  ঘ

  1 + r³
• The value of $${\chi ^2}$$ always lies between
  ক

  0 to +1

  খ

  0 to ∞

  গ

  -1 to 0

  ঘ

  -0 to 2
• If a card is drawn at random from an ordinary pack, then the probability that is a court card will be
  ক

  $$\frac{13}{52}$$

  খ

  $$\frac{12}{52}$$

  গ

  $$\frac{26}{52}$$

  ঘ

  $$\frac{4}{52}$$
• If in case of Poisson distribution μ₁ = 3.2, μ₃ will be
  ক

  2.4

  খ

  3.4

  গ

  4.2

  ঘ

  6.8
• The term 'Inter-communication' means
  ক

  Communication on any issue

  খ

  Communication between two persons

  গ

  Communication between various groups

  ঘ

  All of the above
• Cone of experience' was devised by
  ক

  Rogers

  খ

  O. P. Bhatnagar

  গ

  A. A. Reddy

  ঘ

  Edger Dale
• The real giant in the development of the theory of statistics is
  ক

  Fisher

  খ

  Gauss

  গ

  Bowley

  ঘ

  None of these
• Indian Livestock Census is conducted after every
  ক

  2 years

  খ

  15 years

  গ

  5 years

  ঘ

  20 years
• The arithmetic mean of a distribution is 5. If each frequency is multiplied by 3, then new arithmetic mean will be
  ক

  15

  খ

  5

  গ

  ⁵/₃

  ঘ

  ³/₅