What is the total work participation rate in India as per 2001 census?
A. 54.6%
B. 49.3%
C. 36.6%
D. 39.3%
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If two regression coefficients are -0.8 and -0.2, then the value of coefficient of correlation is
A. -0.16
B. -0.50
C. +0.40
D. -0.40
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Which of the following statement/s is/are correct in context of Baye's Theorem?
A. Under Baye's Theorem, we make use of words such as hypotheses, priori probability and posteriori Probability
B. Baye's Theorem is considered for the case of conditional probability where it is the probability of an event happening, given that it has some relationship to one or more other events
C. Baye's Theorem provides a way to revise existing predictions or update probabilities provided there is given new evidence
D. All of the above
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Which of the following are 'non-statistical' research?
1. Problem solving research
2. Qualitative research
3. Applied research
Select the correct answer using the options given below
A. Only 1
B. Only 2
C. Both 1 and 2
D. Both 2 and 3
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If the standard deviation of a variable X is s and if y = a + bs, where a and b are constants, the standard deviation of y would be
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Which of the following qualities an investigator must possess in collection of primary data?
1. Skill
2. Tact
3. Accuracy
4. Neutrality
5. Personal bias
Select the correct answer using the options given below
A. 1, 2, 3 and 4
B. 2, 3, 4 and 5
C. Both 4 and 5
D. None of the above
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The measurement based on all the values in the series is
A. Range
B. Standard deviation
C. Quartile deviation
D. All of these
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The standard deviation of the first group is 12 and the mean is 15. The standard deviation of the second group is 18 and the mean is 25. Which group is more stable?
A. First group
B. Second group
C. First and second both group
D. None of these in first and second group
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Next year, sales may rise, fall or remain the same as this year, with the following respective probabilities: 0.56, 0.23 and 0.21. The probability of sales remaining the same or falling is:
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Which of the following is a probability-based sample selection technique?
A. Judgment sampling
B. Multistage stratified
C. Subjective sampling
D. Accidental sampling
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Which is most likely to yield qualitative data?
A. Mail survey
B. Focus group
C. Telephone interview
D. None of the above
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The term (1-B) is called:
A. Level of the test
B. Power of the test
C. Size of the test
D. None of the above
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Baye's Theorem is considered as theorem of total probability that is given by:
A. P(A) = P(E1) P(A|E1) + P(E2) P(A|E2) + . . . . . (n terms)
B. P(A) = P(E1) P(A|A1) + P(a) P(A|A1) + . . . . . (n terms)
C. P(A) = P(E) P(E|E1) + P(E) P(A|E2) + . . . . . (n terms)
D. None of the above
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Which of the following is not a mathematical average?
A. Median
B. Arithmetic mean
C. Geometric mean
D. Harmonic mean
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Match the following.
List-I
List-II
a. Quartile deviation
1. Obtained by calculating the absolute deviation of each observation from mean
b. Standard deviation
2. Is one-half of the inter-quartile range
c. Mean deviation
3. Is the square root of the average of the squared distances of the observation from the mean
A. a-2, b-3, c-1
B. a-1, b-2, c-3
C. a-2, b-1, c-3
D. a-3, b-2, c-1
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Which of the following is/are types of research?
A. Objective research
B. Applied research
C. Problem oriented research
D. Both B and C
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If the median is 28 and the arithmetic mean is 30, then mode will be
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What is the function of a post-test in ANOVA?
A. Describe those groups that have reliable differences between group means
B. Set the critical value for the F test (or chi-square)
C. Determine if any statistically significant group differences have occurred
D. None of these
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Which of the following is an economic index:
A. Asymmetry
B. Median
C. Index number
D. Mode
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For a standard normal probability distribution, the mean (μ) and the standard deviation (σ) are:
A. μ = 0, σ = 1
B. μ = 16, σ = 4
C. μ = 25, σ = 5
D. μ = 100, σ = 10
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