Statistics

Sampling Techniques
Systematic sampling is imprecise when the unit in sample is homogeneous:
True
False
Author: rikazzz Comment
Measures of Dispersion
Which of the following is a unit free quantity:
Range
Standard deviation
Coefficient of variation
Arithmetic mean
Author: rikazzz Comment
Corelation and Regression
Which of the following measurement scales is required for the valid calculation of spearman correlationcoefficient?
Ordinal
Interval
Nominal
Ratio
Author: rikazzz Comment
Sampling Techniques
In regression method of estimation sample mean is an unbiased estimate of the population:
total
mean
ratio
variance
Author: rikazzz Comment
Probability Distribution
Mode of Negative Exponential distribution is:
?(1-?t)?^(-1)
Does not exist
2?e^(-1)
?
Author: rikazzz Comment
Corelation and Regression
Which of the following is the highest range of r?
0 and 1
1 and 0
1 and 1
None of these
Author: rikazzz Comment
Introduction to Statistics
Data Classified by attributes are called:
Qualitative Data
Quantitative Data
Ungrouped Data
Geographical Data
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Probability Distribution
Which is order statistics:
A. M
Median
G. M
H. M
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Statistical Inference
The process of drawing inferences about the population parameter:
Statistical Inference
Statistical Analysis
both A and B
None of these
Author: rikazzz Comment
Measures of Dispersion
The mean deviation of the scores 12, 15, 18 is:
6
0
3
2
Author: rikazzz Comment

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