Statistics

Introduction to Statistics
Census reports used as a source of data is:
Primary source
Secondary source
Organized data
None
Author: rikazzz Comment
Probability Distribution
If a = n/2 and ß = 2 then Gamma distribution becomes:
?2 distribution
F- distribution
t- distribution
Beta distribution
Author: rikazzz Comment
Statistical Inference
No. of branches of statistical inference are:
Three
Two
Four
Five
Author: rikazzz Comment
Measures of Central Tendency
The values of mean, median and mode can be:
Some time equal
Never equal
Always equal
None of these
Author: rikazzz Comment
Introduction to Statistics
According to the empirical rule, approximately what percent of the data should lie within $mu pm2sigma$?
75%
68%
99.7%
90%
Author: rikazzz Comment
Sampling Techniques
In ratio method of estimation sample mean is a consistent estimate of population mean:
True
False
Author: rikazzz Comment
Sampling Techniques
Systematic sampling demands the selection of single sampling unit:
True
False
Author: rikazzz Comment
Measures of Dispersion
The arithmetic average of the absolute deviation of a series known as the:
Standard deviation
Coefficient of mean deviation
Mean deviation
None of the above
Author: rikazzz Comment
Sampling Techniques
Clusters are
similar to stratum
homogeneous
dissimilar to stratum
systematic sample
Author: rikazzz Comment
Statistical Inference
If expected value of an estimator is less than the parameter then estimator is called:
Negatively biased
Positively biased
Only biased
None of these
Author: rikazzz Comment

Go to Page