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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
The joint probability of two statistical dependent events Y and Z can be written as P(Y and Z) =
P(Z + Y) * P(Y|Z)
P(Y) * P(Z|Y)
P(Y) * P(Z|Y) + P(Z)
P(Y) * P(Z|Y) – P(Z + Y)
Author:
rikazzz
Comment
Data Classification and Presentation
The histograms, pie charts and frequency polygons are all types of
one dimension diagrams
two dimension diagrams
cumulative diagrams
dispersion diagrams
Author:
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Comment
Measures Of Dispersion
For the set of values, the percentage of values that lies within population mean plus four standard deviations of population is
83.75%
93.75%
95%
98.75%
Author:
rikazzz
Comment
Introduction To Probability
If a person buys a lottery, the chance of winning a Toyota car is 60%, the chance of winning Hyundai car is 70% and the chance of winning both is 40% then chance of winning Toyota or Hyundai is
0.6
0.9
0.8
0.5
Author:
rikazzz
Comment
Business Statistics Basics
The value of any sample statistic which is used to estimate the parameters of population is classified as
point estimate
population estimate
sample estimate
parameter estimate
Author:
rikazzz
Comment
Data Classification and Presentation
The first step in constructing the frequency distribution is to
select appropriate class intervals
determine class intervals
determine class limits
determine midpoints of classes
Author:
rikazzz
Comment
Moments, Skewness and Kurtosis
The method of calculating coefficient of skewness by Karl Pearson method is useful for the type of distributions that are
non concentrated
open ended
close ended
concentrated
Author:
rikazzz
Comment
Moments, Skewness and Kurtosis
The coefficient of skewness by Karl Pearson, Professor Kelly and professor Bowley are considered as
relative measure of skewness
absolute measure of skewness
concentrated measure of skewness
directed measure of skewness
Author:
rikazzz
Comment
Moments, Skewness and Kurtosis
If the beta one is 9, beta two is 11 then coefficient of skewness is
0.589
0.689
0.489
0.889
Author:
rikazzz
Comment
Business Statistics Basics
The types of structured questions does not include
nominal questions
interval questions
ratio questions
non-disguised questions
Author:
rikazzz
Comment
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