Q. Which of the following is not a disadvantage of using mean? It is affected by extreme values It cannot be computed in grouped data with open-ended class intervals It does not possess the desired algebraic property None of the above Answer: It does not possess the desired algebraic property

Q. The geometric mean and harmonic mean of two values are. 8 and 16 respectively, then arithmetic mean of values is: 4 16 24 128 Answer: 16

Q. The averages are affected by change of: Origin Scale Both (a) and (b) None of the above Answer: Both (a) and (b)

Q. Which pair of averages cannot be calculated when one of numbers in the series is zero? Geometric mean and Median Harmonic mean and Mode Simple mean and Weighted mean Geometric mean and Harmonic mean Answer: Geometric mean and Harmonic mean

Q. For an open-end frequency distribution, it is not possible to find: Arithmetic mean Geometric mean Harmonic mean All of the above Answer: All of the above

Q. Harmonic mean gives less weightage to: Small values Large values Positive values Negative values Answer: Large values

Q. The ratio among the number of items and the sum of reciprocals of items is called: Arithmetic mean Geometric mean Harmonic mean Mode Answer: Harmonic mean

Q. If the two observations are a = 2 and b = -2, then their geometric mean will be: Zero Infinity Impossible Negative Answer: Impossible

Q. Geometric mean is suitable when the values are given as: Proportions Ratios Percentage rates All of the above Answer: All of the above

Q. Taking the relevant root of the product of all non-zero and positive values are called: Arithmetic mean Geometric mean Harmonic mean Combined mean Answer: Geometric mean