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Measures of Central Tendency
48
Measures of Dispersion
49
Corelation and Regression
48
Introduction to Statistics
50
Statistical Inference
41
Probability Distribution
47
Sampling Techniques
47
Statistical Packages For Social Science
0
Statistical Methods
0
Business Statistics
576
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Introduction To Probability
For the mutually exclusive events, the formula of calculating probability as n(A) ⁄ n(S) + n(B) ⁄ n(S) is used for
rule of marginal count
rule of comparison
rule of addition
rule of division
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Introduction To Probability
The joint probability of the independent events J and K is equal to
P(J) * P(K)
P(J) + P(K)
P(J) * P(K) + P(J-K)
P(J) * P(K) – P(J * K)
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Data Classification and Presentation
The summary and presentation of data in tabular form with several non-overlapping classes is referred as
nominal distribution
ordinal distribution
chronological distribution
frequency distribution
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Data Classification and Presentation
The largest value is 60 and the smallest value is 40 and the number of classes desired is 5 then the class interval is
20
4
25
15
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Sampling Distributions
In sampling distribution, the formula of calculating standard deviation of sample proportion is as
square root of pqn ⁄ p
square root of pq ⁄ n
square root of nq ⁄ p
square root of pn ⁄ q
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Sampling Distributions
In cluster sampling, the elements of selected clusters are classified as
elementary units
primary units
secondary units
proportional units
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Business Statistics Basics
The type of rating scale which represents response of respondents by marking at appropriate point is classified as
graphic rating scale
responsive scale
pointed scale
marking scale
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Sampling Distributions
The listing of elements in the population with the identifiable number is classified as
regularity experimental frame
indirect experiment frame
direct experimental frame
frame for experiment
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Measures Of Dispersion
According to empirical rule, the standard deviation and mean interval that covers approximately 68.27% of data from a frequency distribution is
μ±σ
2μ±2σ
3μ±2σ
4μ±4σ
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rikazzz
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Measures Of Dispersion
If the positive square root is taken of population variance then the calculated measure is transformed into
standard root
standard deviation
standard variance
sample variance
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