STATISTICAL TECHNIQUES AND TOOLS
INTRODUCTION OF STATISTICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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theories; mathematical models
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subjective methods; objective methods
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samples; populations
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populations; samples
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Detailed explanation-1: -Inferential statistics can only be obtained using data samples. Data collected from a sample represents the whole population. A sample is more accurate than a census: A census of an entire population only sometimes offers accurate data due to errors such as inconsistent responses or non-response bias.
Detailed explanation-2: -When data is collected from the entire population it is called Census method. It includes total count. By this method, more reliable data can be obtained since every item of the whole population is included. Was this answer helpful?
Detailed explanation-3: -Statistics such as averages and standard deviations, when taken from populations are referred to as population parameters. They are often denoted by Greek letters: the population mean is denoted by (mu) and the standard deviation denoted by (low case sigma)