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MCQs

Total Questions : 97 | Page 5 of 10 pages
Question 41. If the coefficient of variation is 13.4% and the standard deviation is 12 then the arithmetic mean of that set of observations is
  1.    69.5
  2.    99.5
  3.    59.5
  4.    89.55
 Discuss Question
Answer: Option D. -> 89.55
Answer: (d).89.55
Question 42. The coefficient of quartile deviation is 10.34% and the difference of first and third quartile is 15 then the sum of third and first quartile is
  1.    155
  2.    165
  3.    175
  4.    145
 Discuss Question
Answer: Option D. -> 145
Answer: (d).145
Question 43. The letter used to denote variance of population is
  1.    2σ²
  2.    2Σxy
  3.    2Σ²
  4.    σ²
 Discuss Question
Answer: Option D. -> σ²
Answer: (d).σ²
Question 44. One of the advantages of using quartile deviation is to use it for
  1.    open end class interval
  2.    close end class interval
  3.    open end class width
  4.    close end class width
 Discuss Question
Answer: Option A. -> open end class interval
Answer: (a).open end class interval
Question 45. The mean absolute deviation is 23 and coefficient of mean absolute deviation is 18 then arithmetic mean is
  1.    2.28
  2.    1.28
  3.    3.28
  4.    4.28
 Discuss Question
Answer: Option B. -> 1.28
Answer: (b).1.28
Question 46. In the formula of sample variance the Σ(x-x̅)² is called
  1.    total sum of squares
  2.    total differences of squares
  3.    multiplier of deviation
  4.    divisor of mean deviation
 Discuss Question
Answer: Option A. -> total sum of squares
Answer: (a).total sum of squares
Question 47. The total order processed at courier office for five days are as 10, 6, 8, 7, 9 then total sum of squares is
  1.    12
  2.    40
  3.    10
  4.    8
 Discuss Question
Answer: Option C. -> 10
Answer: (c).10
Question 48. The price of gasoline for three days are as 98, 96, 97, 100 then the value of standard deviation with the assumed mean method is
  1.    15
  2.    10
  3.    1
  4.    11
 Discuss Question
Answer: Option C. -> 1
Answer: (c).1
Question 49. Considering two projects for investment X and Y, the standard deviation of project A is USD $5650 and standard deviation of project B is 12, 680 then the project that must be selected for investment is
  1.    consider both projects
  2.    project B
  3.    project A
  4.    none of above
 Discuss Question
Answer: Option C. -> project A
Answer: (c).project A
Question 50. In terms of mean absolute deviation, the quartile deviation is equal to
  1.    5⁄6 M.A.D
  2.    6⁄5 M.A.D
  3.    4⁄5 M.A.D
  4.    2⁄3 M.A.D
 Discuss Question
Answer: Option A. -> 5⁄6 M.A.D
Answer: (a).5⁄6 M.A.D

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