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Data Classification and Presentation
65
Introduction To Probability
64
Measures Of Dispersion
97
Measures of Central Tendency
71
Business Statistics Basics
85
Probability Distributions
83
Sampling Distributions
53
Moments, Skewness and Kurtosis
58
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Data Classification and Presentation
The general tables of data used to show data in orderly manner is called as
single characteristics tables
repository tables
manifold tables
double characteristic table
Author:
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Probability Distributions
The binomial probability distribution is classified as skewed to left if
p > 0.5
q > 0.5
p < 0.5
q < 0.5
Author:
rikazzz
Comment
Moments, Skewness and Kurtosis
The measures whose calculated values represents only some proportion of frequency distribution are classified as
measures of deciles systems
measures of momentum system
measures of percentile system
measures of moment system
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rikazzz
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Business Statistics Basics
Considering the sample statistic, if the sample statistic mean is not equal to population parameter then sample statistic is considered as
unbiased estimator
biased estimator
interval estimator
hypothesis estimator
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Measures Of Dispersion
In the formula of sample variance the Σ(x-x̅)² is called
total sum of squares
total differences of squares
multiplier of deviation
divisor of mean deviation
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rikazzz
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Probability Distributions
The value which is obtained by multiplying the possible values of random variable with the probability of occurrence and is equal to weighted average is called
discrete value
weighted value
expected value
cumulative value
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rikazzz
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Measures Of Dispersion
In a set of observations, the amount of variation can be shown in the form of figures with the help of
absolute measures
uniform measures
non-uniform measures
exploratory measures
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rikazzz
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Measures Of Dispersion
If the quartile deviation of given set of data of 20 observations is 12 then value of the standard deviation is
1.667
18
8
32
Author:
rikazzz
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Moments, Skewness and Kurtosis
If all the values move towards one tail of a distribution then this scenario results in
width of distribution
height of distribution
lengthening the tail
shortening the tail
Author:
rikazzz
Comment
Probability Distributions
The formula to calculate standardized normal random variable is
x – μ ⁄ σ
x + μ ⁄ σ
x – σ ⁄ μ
x + σ ⁄ μ
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rikazzz
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