Business Statistics

Probability Distributions
The 2600 applications for home mortgage are received by a bank and the probability of approval is 0.78 then the standard deviation of binomial probability distribution is
2028
546.16
446.16
646.16
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Measures of Central Tendency
The sample stability and ability to be easily understandable are requirements to measure
positive tendency
population tendency
central tendency
sample tendency
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Measures Of Dispersion
The quartile deviation for number of X-ray patients who visits orthopedic in 7 consecutive days is 14 then mean absolute deviation is
18.8
15.8
10.8
16.8
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Moments, Skewness and Kurtosis
For the Karl Pearson’s skewness coefficient the value of skewness must be in limits
±3
±5
±4
±2
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Measures Of Dispersion
If the standard deviation is 5 then quartile deviation is
5
0.334
0.234
0.134
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Moments, Skewness and Kurtosis
The three times of difference between mean and median is divided by standard deviation to calculate coefficient of skewness by method of
Professor Keller
Professor Bowley
Karl Pearson
Professor Kelly
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Measures Of Dispersion
In terms of dispersion difference, the measurement of dispersion for available data is classified as
average measures
distance measures
average deviation measures
availability measures
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Moments, Skewness and Kurtosis
In statistical procedures, the skewness is used to measure the
amount of variance
amount of upper tail values
amount of dispersion
direction of dispersion
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Sampling Distributions
The method of sampling in which the population is divided in to mutual exclusive groups that have useful context in statistical research is classified as
stratified sampling
regular group sampling
irregular group sampling
direct group sampling
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Measures Of Dispersion
The standard deviation of population is denoted by
Ω
ω
σ
Σ
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