TQMR Statistics MCQs : This section focuses on the "TQMR Statistics". These Multiple Choice Questions (MCQs) should be practiced to improve the TQMR Statistics skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
‘Parameter’ is a true population estimated by a ‘statistic’ and is often unknown.
A. TRUE
B. FALSE
Question 2
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?
A. 10
B. 8
C. 6
D. 4
Question 3
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?
A. 80 mm
B. 81 mm
C. 84 mm
D. 82.5 mm
Question 4
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?
A. 80 mm
B. 81 mm
C. 84 mm
D. 82 mm
Question 5
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?
A. 21 mm
B. There is no mode
C. 22.5 mm
D. 20 mm
Question 6
The data set for measuring height of an object which is 80 cm includes five readings which are 40.5 cm, 81 cm, 72 cm, 48 cm, 50 cm. What can be the conclusion made by this study?
A. Data is precise and accurate
B. Data is precise but not accurate
C. Data is neither precise nor accurate
D. Data is not precise but accurate
Question 7
The data set for measuring length of an object which is 50 cm includes five readings which are 40 cm, 40 cm, 41 cm, 40.5 cm, and 41 cm. What can be the conclusion made by this study?
A. Data is precise and accurate
B. Data is precise but not accurate
C. Data is neither precise nor accurate
D. Data is not precise but accurate
Question 8
The data set for measuring width of an object which is 50 cm includes five readings which are 49.5 cm, 49.5 cm, 50.5 cm, 50.3 cm, and 49.7 cm. What can be the conclusion made by this study?
A. Data is precise and accurate
B. Data is precise but not accurate
C. Data is neither precise nor accurate
D. Data is not precise but accurate
Question 9
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?
A. 4.5 m
B. 4 m
C. 5 m
D. 4.5 m and 5 m
Question 10
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?
A. Data is precise and accurate
B. Data is precise but not accurate
C. Data is neither precise nor accurate
D. Data is not precise but accurate
Question 11
There are two normal curves with the same mean value. The standard deviation of curve 1 is more than curve 2, what can we comment on the two normal curves?
A. Curve 1 is flatter than Curve 2
B. Curve 1 is peaked than Curve 2
C. Curve 1 is similar to Curve 2
D. Curve 1 and Curve 2 cannot be compared
Question 12
Variable data is also known as ______
A. Continuous data
B. Disputed data
C. Discrete data
D. Attribute data
Question 13
What is the mean deviation from the mean of the following observation:9,9,2,3,6,9,4?
A. 2.5
B. 2.62
C. 2.4
D. 2.57