In descriptive statistics, we study______________?
A. The description of decision making process
B. The methods for organizing, displaying, and describing data
C. How to describe the probability distribution
D. None of the above
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In inferential statistics, we study____________?
A. the methods to make decisions about population based on sample results
B. how to make decisions about mean, median, or mode
C. how a sample is obtained from a population
D. None of the above
A chance variation in an observational process is_____________?
A. Dispersion/ Variability
B. Measurement error
C. Random error
D. Instrument error
Population census is conducted through_______________?
A. Sample survey
B. Accounting
C. Investigation
D. Complete enumeration
Life of a T.V picture tube is a____________?
A. Discrete variable
B. Continuous variable
C. Qualitative variable
D. Constant
The grouped data is also called_____________?
A. Raw data
B. Primary data
C. Secondary data
D. Qualitative data
The first hand and unorganized form of data is called_______________?
A. Secondary data
B. Organized data
C. Primary data
D. None of these
Which of these represent qualitative data______________?
A. Height of a student
B. Liking or disliking of (500) persons of a product
C. Income of a government servant in a city
D. Yield from a wheat plot
Sum of dots when two dice are rolled is____________?
A. a discrete variable
B. a continuous variable
C. a constant
D. a qualitative variable
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