Business Statistics

Measures Of Dispersion
The total order processed at courier office for five days are as 10, 6, 8, 7, 9 then total sum of squares is
12
40
10
8
Author: rikazzz Comment
Measures Of Dispersion
Considering the set of values, the percentage of values that lies within three standard deviation of population plus population mean is
88.90%
78.90%
68.90%
98.90%
Author: rikazzz Comment
Business Statistics Basics
The statistical method which facilitate the decision making process for population sample results is classified as
decisional procedure
inferential statistics
elementary statistics
social methodology
Author: rikazzz Comment
Probability Distributions
If the value of interval a is 4 and the value of interval b is 5 then the variance of uniform distribution is
6.75
4.75
5.75
0.75
Author: rikazzz Comment
Probability Distributions
The variance of random variable x of gamma distribution can be calculated as
Var(x) = n + 2 ⁄ μ²;
Var(x) = n ⁄ μ²;
Var (x) = n * 2 ⁄ μ²;
Var(x) = n – 2 ⁄ μ³;
Author: rikazzz Comment
Introduction To Probability
In probability theories, the events which can never occur together are classified as
collectively exclusive events
mutually exhaustive events
mutually exclusive events
collectively exhaustive events
Author: rikazzz Comment
Business Statistics Basics
In confidence interval estimation, the formula of calculating confidence interval is
point estimate * margin of error
point estimate ± margin of error
point estimate – margin of error
point estimate + margin of error
Author: rikazzz Comment
Measures of Central Tendency
The number of observations are 30 and the value of arithmetic mean is 15 then sum of all values is
15
450
200
45
Author: rikazzz Comment
Business Statistics Basics
The use of statistics in analysis of time when to order and quantity required for the in sourcing or outsourcing of materials is an example of usage of
statistics in marketing
statistics in production
statistics in personnel management
statistics in finance
Author: rikazzz Comment
Measures Of Dispersion
The difference between highest and lowest observation is 20 and coefficient of range is 0.077 then sum of highest and lowest value is
210
220
260
240
Author: rikazzz Comment

Go to Page