Statistics

Probability Distributions
If the number of trials are 8 and the probability of success are 0.65 then the mean of negative probability distribution is
8.65
12.31
5.2
7.35
Author: rikazzz Comment
Measures Of Dispersion
Considering the standard deviation, the mean absolute deviation is equal to
5⁄4σ
5⁄8σ
4⁄5σ
7⁄8σ
Author: rikazzz Comment
Measures Of Dispersion
If the set of observations is 11, 13, 15, 12, 16, 18, 19, 14, 20, 17 and absolute mean deviation is 12 then the percentage of coefficient of mean absolute deviation is
47.41%
57.41%
67.41%
77.41%
Author: rikazzz Comment
Business Statistics Basics
The upper and lower boundaries of interval of confidence are classified as
error biased limits
marginal limits
estimate limits
confidence limits
Author: rikazzz Comment
Moments, Skewness and Kurtosis
In a symmetrical distribution, the third quartile and first quartile of data in distribution must
be at equal distance
not be at equal distance
positive value concentration
negative value concentration
Author: rikazzz Comment
Probability Distributions
In the normal distribution, the normal curve becomes more wider and more flatter because of
small value of variance
large value of variance
large value of standard deviation
small value of standard deviation
Author: rikazzz Comment
Moments, Skewness and Kurtosis
If the first quartile and third quartile are as 20 and 18 respectively with the median of 12 then distribution is skewed to
close end tail
open end tail
lower tail
upper tail
Author: rikazzz Comment
Probability Distributions
If the value of x is less than μ of standard normal probability distribution then the
z-statistic is negative
z-statistic is positive
f(x) will be even number
f(x) will be prime number
Author: rikazzz Comment
Introduction To Probability
The method in which the previously calculated probabilities are revised with new probabilities is classified as
updating theorem
revised theorem
Bayes theorem
dependency theorem
Author: rikazzz Comment
Business Statistics Basics
The type of variable which can take fixed integer values is classified as
flowchart variable
discrete variable
continuous variable
measuring variables
Author: rikazzz Comment

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