Q1. In the olden days statistics was confined to only —–.
Answer
State affairs
Q2. Classification and —– are the two methods that are used to condense the data.
Answer
Tabulation
Q3. The analysis of time series and regression analysis plays an important role in —–.
Answer
Forecasting
Q4. —– is one of the statistical tool plays prominent role in agricultural experiments.
Answer
Analysis of variance (or ANOVA)
Q5. A population consisting of an unlimited number of units is called an —– population.
Answer
infinite
Q6. If all the units of a population are surveyed it is called —–.
Answer
complete enumeration or census
Q7. The discrepancy between a parameter and its estimate due to sampling process is known as —–.
Answer
sampling error
Q8. The list of all the items of a population is known as —–.
Answer
sampling frame
Q9. Stratified sampling is appropriate when population is —–.
Answer
heterogeneous or Non- homogeneous
Q10. When the items are perishable under investigation it is not possible to do —–.
Answer
complete enumeration
Q11. When the population consists of units arranged in a sequence would prefer —– sampling.
Answer
systematic
Q12. For a homogeneous population, —– sampling is better than stratified random sampling.
Answer
simple random
Q13. Geographical classification means, classification of data according to —–.
Answer
Place
Q14. The data recorded according to standard of education like illiterate, primary, secondary, graduate, technical etc, will be known as —– classification.
Answer
Qualitative
Q15. An arrangement of data into rows and columns is known as —–.
Answer
Tabulation
Q16. Tabulation follows —–.
Answer
Classification
Q17. In a manifold table we have data on —–.
Answer
More than two characteristics
Q18. H.A. Sturges formula for finding number of classes is —–.
Answer
k = 1 + 3.322 log10N
Q19. If the mid-value of a class interval is 20 and the difference between two consecutive midvalues is 10 the class limits are —– and —–.
Answer
15 and 25
Q20. The difference between the upper and lower limit of class is called —–.
Answer
width or size of class
Q21. The average of the upper and lower limits of a class is known as —–.
Answer
Mid-value
Q22. Number of observations falling within a particular class interval is called —–of that class.
Answer
Frequency
Q23. Sub-divided bar diagram are also called _____ diagram.
Answer
Component bar
Q24. In rectangular diagram, comparison is based on _____ of the rectangles.
Answer
Area
Q25. Squares are —– dimensional diagrams.
Answer
Two
Q26. Ogives for more than type and less than type distribution intersects at —–.
Answer
Median
Q27. —– Curve is graphical method of studying dispersion.
Answer
Lorenz
Q28. If 5 is subtracted from each observation of a set, then the mean of the observation is reduced by —–
Answer
5
Q29. The arithmetic mean of n natural numbers from 1 to n is ——
Answer
n +1/2
Q30. Geometric mean cannot be calculated if any value of the set is —–
Answer
0 and negative
Q31. Median is a more suited average for grouped data with —– classes.
Answer
Open end
Q32. 3rd quartile and —– percentile are the same.
Answer
75th
Q33. Relative measure of dispersion is free from —–
Answer
units
Q34. —– is suitable for open end distributions.
Answer
Q.D
Q35. The mean of absolute deviations from an average is called —–
Answer
M.D
Q36. Variance is 36, the standard deviation is —–__
Answer
6
Q37. The standard deviation of the five observations 5, 5,5,5,5 is —–
Answer
Zero
Q38. The standard deviation of 10 observation is 15. If 5 is added to each observations the value of new standard deviation is —–
Answer
15
Q39. The second central moment is always a —–
Answer
Variance
Q40. If xbar = 50, mode = 48, Rho = 20, the coefficient of skewness shall be —–
Answer
0.1
Q41. In a symmetrical distribution the coefficient of skewness is —–
Answer
zero
Q42. If Β 2 = 3 the distribution is called —–
Answer
Mesokurtic
Q43. Correlation coefficient is free from —–.
Answer
Units
Q44. The diagrammatic representation of two variables is called —–
Answer
Scatter diagram
Q45. The relationship between three or more variables is studied with the help of —– correlation.
Answer
Multiple
Q46. Product moment correlation was found by —–
Answer
Pearson
Q47. When r = +1, there is —– correlation.
Answer
Positive perfect
Q48. If rxy = ryx, correlation between x and y is —–
Answer
Symmetric
Q49. Rank Correlation is useful to study —– characteristics.
Answer
Qualitative
Q50. The nature of correlation for shoe size and IQ is —–
Answer
No correlation
Q51. The regression analysis measures —– between X and Y.
Answer
dependence
Q52. The purpose of regression is to study —– between variables.
Answer
dependence
Q53. If one of the regression coefficients is —– unity, the other must be —– unity.
Answer
more than, less than
Q54. The farther the two regression lines cut each other, the —– be the degree of correlation.
Answer
lesser
Q55. When one regression coefficient is positive, the other would also be —–.
Answer
positive
Q56. The sign of regression coefficient is —– as that of correlation coefficient.
Answer
same
Q57. Index numbers help in framing of —–.
Answer
Policies
Q58. Fisher’s ideal index number is the —– of Laspeyer’s and Paasche’s index numbers.
Answer
Geometric mean
Q59. Index numbers are expressed in —–.
Answer
Percentage
Q60. —– is known as Ideal index number.
Answer
Fisher’s index number
