Match the following.
List-I List-II
a. Range
1. Summing up the consecutive frequencies
b. Width of the interval
2. Range/Number of classes
c. Open ended class
3. Highest value-lowest value in data
d. Cumulative frequency
4. No lower limit of first group or no upper limit of the last group
A. a-1, b-2, c-3, d-4
B. a-3, b-2, c-4, d-1
C. a-2, b-3, c-4, d-1
D. a-4, b-3, c-2, d-1
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In case of unequal term values-
A. X < G . M . < H . M .
B. X > G . M . > H . M .
C. X = G . M . = H . M .
D. None of these
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A histogram is constructed from a frequency distribution and is
A. uni-dimensional
B. two dimensional
C. three dimensional
D. None of these
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Who said, "Statistics is the science of estimates and probabilities."
A. Bowley
B. Boddington
C. Prof. King
D. P. H. Carmel
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Harmonic mean is calculated by dividing the number of observations by the reciprocal of each number in the series. Thus, the harmonic mean is:
A. the reciprocal of the arithmetic mean of the reciprocals
B. the reciprocal of the geometric mean of the reciprocals
C. the reciprocal of the mode of the reciprocals
D. the reciprocal of the median of the reciprocals
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Regression analysis measures:
A. The magnitude of the covariance between the X and Y series
B. Variance of Y series
C. Variance of X series
D. Functional relationship between X and Y variable
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Match the following.
List-I List-II
a. Diagrammatic representation
1. Geographical, chronological, qualitative, quantitative
b. Graphic representation
2. Ungrouped, grouped
c. Frequency distribution
3. Bar diagram, pie chart, pictogram
d. Classification of data
4. Histogram, frequency polygon, ogive
A. a-1, b-2, c-3, d-4
B. a-3, b-4, c-2, d-1
C. a-2, b-3, c-1, d-4
D. a-4, b-3, c-2, d-1
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Which of the following is correct?
A. 1, 2 and 3
B. 2, 3 and 4
C. 1, 3 and 4
D. All of the above
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Which of the following are the positional averages?
A. Both 1 and 2
B. Both 2 and 3
C. Both 1 and 3
D. 1, 2 and 3
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Which of the following is correct?
A. Z = 3 M − 2 X
B. M = 3 Z − 2 X
C. X = 3 Z − 2 M
D. M = X − 3 Z
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If A ⊂
A. P(a) > P(b)
B. P(A) ≥ P(B)
C. P(B) = P(A)
D. P(B) = P(B)
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The best mean for construction of index is
A. Median
B. Arithmetic mean
C. Geometric mean
D. None of these
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For a sampling theorem with mean μ, confidence interval should be
A. (X + Z - α SEM)
B. (X - Z - α SEM)
C. (X ± Z - α SEM)
D. None of these
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Variance of a sampling distribution with mean μ is
A. σ2 /n
B. σ/n
C. n/σ2
D. None of these
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If sample results fail to support the null hypothesis, we must conclude that something else is true, which is termed as
A. type I error
B. type II error
C. alternative hypothesis
D. None of these
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The . . . . . . . . is a set of values for testing statistic, for which the null hypothesis is rejected in a hypothesis test.
A. critical region
B. rejection region
C. Either A or B
D. None of these
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Calculate mean from the following data.
Age (X)Frequency (f)
17
2
18
1
19
1
20
2
22
3
23
1
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The relationship between correlation coefficient and coefficient of determination can be expressed as follows
A. Coefficient of determination is the squares of correlation coefficient
B. Coefficient of determination is the square root of correlation coefficient
C. Both are equal
D. Both are unrelated
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Karl Pearson's correlation coefficient is calculated by which of the following formula?
A. Var . ( X ) Var . ( Y ) Covariance of X and Y
B. Var . ( X ) Var . ( Y ) Covariance of X and Y C. Covariance of X and Y Var . ( X ) Var . ( Y ) D. Covariance of X and Y Var . ( X ) Var . ( Y )
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Parametric tests are those that make assumptions about the parameters of the population distribution from which the sample is drawn. This is often the assumption that the population data are normally distributed. Which of the following tests are the examples of Parametric Tests?
A. 1, 2 and 4
B. 1, 3 and 4
C. 1, 2 and 3
D. 1, 2, 3 and 4
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