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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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Business Statistics Basics
The scale which categorize the events in collectively exhaustive manner and mutually exclusive manner is classified as
discrete scale
continuous scale
valid scale
nominal scale
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Introduction To Probability
If two events X and Y are considered as partially overlapping events then the rule of addition can be written as
P(X or Y) = P(X) – P(Y) + P(X and Y)
P(X or Y) = P(X) + P(Y) * P(X – Y)
P(X or Y) = P(X) * P(Y) + P(X – Y)
P(X or Y) = P(X) + P(Y) – P(X and Y)
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Measures Of Dispersion
If the large number of values lies in the central part of data table then the spread of values is measured by
percentile range
inter quartile range
quartile range
deciles range
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Measures of Central Tendency
Considering the probability distribution, if the mode is greater than median then the distribution is classified as
variable model
right skewed
left skewed
constant model
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Sampling Distributions
In systematic sampling, the population is 200 and the selected sample size is 50 then the sampling interval is
250
0.25
4
40
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Measures of Central Tendency
In a set of observations, the unusual lower and higher values are called
outliers
free liners
central liners
median liners
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Moments, Skewness and Kurtosis
If the median is 18, coefficient of skewness is 6 and the mean is 30 then standard deviation of data is
6
18
30
36
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Sampling Distributions
In sampling, the measures such as variance, mean, standard deviation are considered as
absolute statistics
coverage estimator
parameters
estimators
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Moments, Skewness and Kurtosis
The percentile and moment system are two groups of
skewness measures
central tendencies measures
quartile measures
percentile measures
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Measures of Central Tendency
If the arithmetic mean is 20 and the harmonic mean is 30 then geometric mean is
14.94
24.94
34.94
44.94
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