Sampling Methods — Flashcards
Gujarat Board · Class 11 · Statistics
28 flashcards for Sampling Methods (Gujarat Board Class 11 Statistics) to test yourself on key terms and facts.
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What is a Population in statistics?
Answer
A set or group of all units or items under study is called a Population. For example, if we want to study the IQ level of all XII standard students of Gujarat Board, then all XII standard students of …
What is a Sample in statistics?
Answer
A set or group of units selected from a population on the basis of some definite criteria is called a Sample. For example, if we select 1000 students from all XII standard students of Gujarat board ba…
What is the difference between sample with replacement and sample without replacement?
Answer
Sample with replacement: Each unit is selected from the population after replacing the unit selected earlier in the population. Sample without replacement: Each unit is selected from the population wi…
What is Population Inquiry or Census Survey?
Answer
The inquiry in which information is collected from each and every unit of the population is called population inquiry or census survey. Example: The census survey conducted every ten years in India, o…
What is Sample Inquiry or Sample Survey?
Answer
The inquiry in which information is collected from a few units selected from the population is called sample inquiry or sample survey. Example: Collecting information about spending habits of few sele…
What is Sampling?
Answer
The procedure of selecting a sample from a population is called sampling. It is used to draw inferences about the characteristics of the population based on sample data.
In which four situations is sampling inevitable?
Answer
1. The number of units in population is very large 2. Units are spread over wide geographical area 3. Units under inquiry are to be destroyed (destructive testing) 4. Limited availability of resources…
What are Sample Statistics and Parameters?
Answer
Sample Statistics: Measures such as mean, standard deviation, etc. calculated from numerical data obtained from sample units. Parameters: All these measures calculated for population data. The main ob…
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