Agriculture Statistics Objective Questions for Competitive Exams PDF

Statistics Objective Questions useful for General Agriculture for ICAR and other Agri Competitive Exams like JRF, SRF, ARS, PhD, M.Sc. IBPS, AFO, AO, IFS, NABARD.

1. Which measure of central tendency is especially suited in the field of business?
(A) Median (B) Arithmetic mean
(C) Harmonic mean (D) Mode✓

2. Unitless measure of dispersion is–
(A) Standard deviation (B) Mean deviation
(C) Range (D) CV✓

3. The hypothesis of no difference is known as–
(A) Simple hypothesis (B) Null hypothesis✓
(C) Composite hypothesis (D) Alternative hypothesis

4. How many number of treatments can be adopted in LSD–
(A) 5 to 8 (B) 5 to 12
(C) Both (A) & (B)✓  (D) Not estimated

5. The completely randomized design is appropriate when the experimental material is–
(A) Limited and homogenous✓ (B) Unlimited and heterogeneous
(C) Limited and heterogeneous (D) Unlimited and homogenous

6. When the fertility gradient of the field is in one direction, which design is appropriate–
(A) CRD (B) LSD
(C) RBD✓ (D) SPD

7. The principle of making use of greater homogeneity in groups of experimental units to reduce the experimental error is .referred as
(A) Replication (B) Randomization
(C) Local control✓ (D) None of these

8. The range of multiple correlation coefficient lies between–
(A) 0 to + 1✓ (B) -1 to + 1
(C) 0 to 00 (D) - 00 to + 00

9. The repetition of the treatment under investigation is known as–
(A) Randomization (B) Replication✓
(C) Local control (D) None of these

10. Select the most appropriate design when all factors are not of equal importance in experimentation–
(A) Augmented (B) Strip plot design
(C) LSD (D) Split plot design✓

11. The range of correlation coefficient lies between–
(A) -1 to + 1✓ (B) 0 to 1
(C) 0 to 00 (D) 0 to 100

12. Indian Agricultural Statistical Research Institute is established at
(A) Lucknow (B) Jaipur
(C) New Delhi✓ (D) Kolkata

13. The accuracy or a measurement signifies the closeness with which an estimate approaches the–
(A) True value✓ (B) Average value
(C) Both (A) and (B) (D) None of these

14. Which design is most appropriate for laboratory experiments?
(A) CRBD (B) CRD
(C) LSD✓ (D) Factorial RBD

15. Which test is applied for the test of significance between the two variances–
(A) t-test (B) z-test
(C) X2- test (D) F- test✓

16. A measure of the peakedness or convexity of a curve is known as–
(A) Skewness (B) Kurtosis✓
(C) Ogive (D) Histogram

17. When the experimental material is very less and the number of genotypes are very large, which design is most suited–
(A) Split plot design (B) LSD
(C) RED (D) Augmented design✓

18. The R rank correlation was suggested by–
(A) James Bernoulli (B) SD Poisson
(C) C Spearman✓ (D) Laplace and Gauss

19. The correlation coefficient remains unaffected by the change of–
(A) Origin (B) Scale
(C) Both (A) & (B)✓ (D) None of these

20. For X2 test no theoretical cell frequency should be small, it should be at least–
(A) 2 (B) 5✓
(C) 8 (D) 12

21. The minimum error degree of freedom should be at least–
(A) 6 (B) 12✓
(C) 18 (D) 20

22. The ogive is a method of–
(A) Diagrammatic representation (B) Graphical representation✓
(C) Both (A) and (B) (D) None of these

23. The non-parametric test used for two independent samples is–
(A) t-test (B) z - test
(C) F - test (D) Mann - Whitney U - test✓

24. The variation due to uncontrolled factors is spoken as–
(A) Standard error (B) Experimental error✓
(C) Treatment effects (D) All of these

25. Comparison of several independent samples is tested by–
(A) Quade test (B) Friedmann test
(C) Wilcoxon Signed-rank test (D) Kruskal-Wallis H test✓

26. If there are 5 treatments with 4 replication to each, the error degree of freedom for C R D will be–
(A) 15✓ (B) 20
(C) 12 (D) 9

27. When the value of correlation coefficient is then two variables are
(A) Uncorrelated (B) Partially correlated
(C) Perfectly correlated✓ (D) Highly Correlated

28. Which measure of central tendency is appropriate for index numbers?
(A) Harmonic mean (B) Arithmetic mean
(C) Mode (D) Geometric mean✓

29. Crop cutting survey on sugarcane recommended the plot size for estimation of crop yield is–
(A) 20 m x 10 m (B) 10 m x 10 m
(C) 10 m x 5 m (D) 5 m x 5 m✓

30. If there are 6 levels of moisture regime and 6 replications each, the error degree of freedom for LSD will be–
(A) 25 (B) 35
(C) 36 (D) 20✓

31. For test of goodness of fit, which statistical test is applied–
(A) X 2_ test✓ (B) F - test
(C) z - test (D) ~ - test

32. In confounding, generally which order of interactions is confounded–
(A) Lower order (B) First order
(C) Higher order✓ (D) All of these

33. Student's t-test is used when sample size is and population standard deviation is not known–
(A) Large (B) Small✓
(C) Both (D) None of these

34. The statistical procedure for estimating whether the difference under study is significant or non-significant is known as–
(A) Test of significance✓ (B) Standard error
(C) Level of significance (D) Sampling

35. A normal distribution is due to the work of–
(A) James Bernoulli (B) SD Poisson
(C) Laplace and Gauss (D) Demoivre✓

36. The square of the standard deviation is known as the–
(A) Variance✓  (B) Standard deviation
(C) Mean deviation (D) Coefficient of variance

37. Indian Livestock after every Census is conducted–
(A) 2 years (B) 5 years✓
(C) 10 years (D) 20 years

38. The critical difference (CD) is a form of t-test and its formula is given by–
(A) CD=t.SE(D)✓  (B) CD=t+SE(D)
(C) CD=t/SE(D) (D) CD=F.SE(D)

39. The  X2 (chi-square) test for goodness of fit and independence of attributes come under–
(A) Parametric tests (B) Non - parametric test✓
(C) Both (A) and (B) (D) Not classified

40. When we want to conduct an experiment on a long strip of land, which design will be preferred–
(A) RBD (B) CRD
(C) SPD (D) LSD✓

41. The curves which are very highly peaked and have the value of b2 > 3 are called–
(A) Mesokurtic (B) Leptokurtic✓
(C) Platykurtic (D) All of these

42. If all the variate values are the same (e.g. 8,8,8), the standard deviation will be–
(A) 4 (B) 8
(C) 16 (D) 0✓

43. Which measure of central tendency is applied for calculation of regression and correlation coefficient ?
(A) Arithmetic mean✓ (B) Mode
(C) Median (D) Geometric mean

44. When statistics is used in plural sense it means–
(A) Statistical methods (B) Collect statistics
(C) Both (A) and (B) (D) None of the these

45. Who is considered as father of statistics ?
(A) RA Fisher✓ (B) Pearson
(C) AL Bowley (D) Boddington

46. When we want average of rates of change or ratios or index number, which measure of central tendency is suitable–
(A) Geometric mean✓ (B) Mode
(C) Arithmetic mean (D) Median

47. Which type of average would be suitable to calculate the size of agricultural holding–
(A) Mode✓ (B) Median
(C) Weighted HM (D) Weighed AM

48. The intelligence, ability or efficiency can be measured by use of–
(A) Median✓ (B) Mode
(C) Weighted HM (D) Geometric mean

49. The geometric mean of a given series is always less than its–
(A) Harmonic mean (B) Weighted mean
(C) Arithmetic mean✓ (D) Weighed harmonic mean

50. The variance is the square of
(A) Mean deviation (B) Standard deviation✓
(C) Range (D) Correlation