Measures Of Dispersion(Business Statistics ) Questions and Answers

Question 1. If the quartile range is 24 then the quartile deviation is
  1.    48
  2.    12
  3.    24
  4.    72
Explanation:-
Answer: Option B. -> 12
Answer: (b).12
Question 2. For the recorded observation, the ratios measured by absolute variation are considered as
  1.    non-relative measures
  2.    relative measures
  3.    high uniform measures
  4.    low uniform measures
Explanation:-
Answer: Option B. -> relative measures
Answer: (b).relative measures
Question 3. If mean absolute deviation of set of observations is 8.5 then value of quartile deviation is
  1.    7.08
  2.    9.08
  3.    10.2
  4.    11.2
Explanation:-
Answer: Option A. -> 7.08
Answer: (a).7.08
Question 4. If the arithmetic mean is multiplied to coefficient of variation then the resulting value is classified as
  1.    coefficient of deviation
  2.    coefficient of mean
  3.    standard deviation
  4.    variance
Explanation:-
Answer: Option C. -> standard deviation
Answer: (c).standard deviation
Question 5. The sum of all the squared deviations is divided by the total number of observations to calculate
  1.    population deviation
  2.    population variance
  3.    sample deviation
  4.    sample variance
Explanation:-
Answer: Option B. -> population variance
Answer: (b).population variance
Question 6. The formula in which Σ(x-x̅)² is divided by one less than number of observations in sample is classified as
  1.    coefficient of deviation
  2.    mean variance
  3.    sample variance
  4.    population variance
Explanation:-
Answer: Option C. -> sample variance
Answer: (c).sample variance
Question 7. The standard deviation of population is denoted by
  1.    Ω
  2.    ω
  3.    σ
  4.    Σ
Explanation:-
Answer: Option C. -> σ
Answer: (c).σ
Question 8. The formula written as quartile deviation divided by sum of third and first quartile is used to calculate
  1.    coefficient of quartile deviation
  2.    coefficient of quartiles
  3.    coefficient of inter quartiles
  4.    coefficient of central tendency
Explanation:-
Answer: Option A. -> coefficient of quartile deviation
Answer: (a).coefficient of quartile deviation
Question 9. The output of 20 workers in hand made pot painting store is as 55, 65, 62, 60, 74, 75, 65, 70, 70, 72, 67, 78, 79, 80, 68, 54, 56, 63, 69, 71 then the coefficient of range is
  1.    0.29
  2.    0.19
  3.    0.49
  4.    0.39
Explanation:-
Answer: Option B. -> 0.19
Answer: (b).0.19
Question 10. The standard deviation of first 50 natural numbers is
  1.    45.43
  2.    14.43
  3.    20.43
  4.    16.43
Explanation:-
Answer: Option B. -> 14.43
Answer: (b).14.43
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