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MCQs

Total Questions : 60 | Page 5 of 6 pages
Question 41. The peak of a curve is located at (4,4). Four students located the peak of the curve to be at (3,4), (5,4), (4,3), and (4,5). What can be the conclusion made by this study?
  1.    Data is precise and accurate
  2.    Data is precise but not accurate
  3.    Data is neither precise nor accurate
  4.    Data is not precise but accurate
 Discuss Question
Answer: Option D. -> Data is not precise but accurate
Answer: (d).Data is not precise but accurate
Question 42. If the diameter of a shaft is measured as 80 mm, 81 mm, 82 mm, 83 mm, 84 mm, 85 mm. What is the median of the observed values?
  1.    80 mm
  2.    81 mm
  3.    84 mm
  4.    82.5 mm
 Discuss Question
Answer: Option D. -> 82.5 mm
Answer: (d).82.5 mm
Question 43. If the diameter of a shaft is measured as 80 mm, 81 mm, 82 mm, 83 mm, 84 mm. What is the median of the observed values?
  1.    80 mm
  2.    81 mm
  3.    84 mm
  4.    82 mm
 Discuss Question
Answer: Option D. -> 82 mm
Answer: (d).82 mm
Question 44. The height of a tank measured by five engineers is 5 m, 4 m, 4.5 m , 4.5 m, 5 m. What is the mode of the calculated values?
  1.    4.5 m
  2.    4 m
  3.    5 m
  4.    4.5 m and 5 m
 Discuss Question
Answer: Option D. -> 4.5 m and 5 m
Answer: (d).4.5 m and 5 m
Question 45. If the observed diameter of a shaft is 20 mm, 21 mm, 23 mm, 22.5 mm, 24 mm. What is the mode of the observed data?
  1.    21 mm
  2.    There is no mode
  3.    22.5 mm
  4.    20 mm
 Discuss Question
Answer: Option B. -> There is no mode
Answer: (b).There is no mode
Question 46. The square of the standard deviation is variance.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 47. If the coefficient of variation of a data set A is 40 and for data set B it is 60, which data set is more consistent?
  1.    Data set A
  2.    Data set B
  3.    Both are equally consistent
  4.    Neither of them is consistent
 Discuss Question
Answer: Option A. -> Data set A
Answer: (a).Data set A
Question 48. A set of observations x₁, x₂, x₃, x₄, has a standard deviation = 6. Each of these observations is added with a constant k. What is the new standard deviation?
  1.    10
  2.    8
  3.    6
  4.    4
 Discuss Question
Answer: Option C. -> 6
Answer: (c).6
Question 49. The standard deviation is 110 and the mean is 770. What is the coefficient of variation?
  1.    15
  2.    14.29
  3.    13.37
  4.    12
 Discuss Question
Answer: Option B. -> 14.29
Answer: (b).14.29
Question 50. If the variance of the data 2, 4, 5, 6, 8, 17 is 23.33. Then, what is the variance of 4, 8, 10, 12, 16, 34?
  1.    40
  2.    42.55
  3.    46.66
  4.    49
 Discuss Question
Answer: Option C. -> 46.66
Answer: (c).46.66

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