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When would random sampling not be the best approach to sample selection?
When would random sampling not be the best approach to sample selection
Which sampling would be appropriate to survey 280000 people?
28,000
How would you define the sampling universe and why you chose this sample definition?
The sampling universe is the totatility of items/events from which you can select or sample for statistical analysis and description.
What does the central limit theorem say about the shape of the sampling distribution of?
The Central Limit THeorem say that the sampling distribution of .. is ... It would help if you read your question before posting it.
What is the difference between a probability distribution and sampling distribution?
A sampling distribution function is a probability distribution function. Wikipedia gives this definition: In statistics, a sampling distribution is the probability distribution, under repeated sampling of the population, of a given statistic (a numerical quantity calculated from the data values in a sample). I would add that the sampling distribution is the theoretical pdf that would ultimately result under infinite repeated sampling. A sample is a limited set of values drawn from a population. Suppose I take 5 numbers from a population whose values are described by a pdf, and calculate their average (mean value). Now if I did this many times (let's say a million times, close enough to infinity) , I would have a relative frequency plot of the mean value which will be very close to the theoretical sampling pdf.
Are ecologist and environmentalist the same?
Broadly speaking yes. The difference would be that generally we would say that the ecologist has a career and the environmentalist supports a movement.
Where would an ecologist work?
im a lab
Is it better to be an actress or an ecologist?
Well, being an actress would be great.. Great pay (; But, you might not always get the chance to become a big actress like Jennifer Aniston or someone like that. So, I say ecologist, If you have the shot to become an actress, go for it, but keep that ecologist job in your mind :D P.S. If you become famous you better talk to me >:)
When would random sampling not be the best approach to sample selection?
When would random sampling not be the best approach to sample selection
What kind of biologist would study interaction between organsims?
ecologist
Where would an ecologist find the most phytoplankton in the lake?
Photic Zone
When is census necessary instead of sampling?
census is conducted for group data so if it is a sampling data is taken it would lead to lot of non sampling errors
Which of the following levels of organization would and ecologist be most interested in studying?
cell
What type of scientist studies biotic factors?
I would describe such a scientist as an environmental scientist.
What is a person called who studies habitats?
A person who studies habitats is called an ecologist. Ecologists examine the relationship between living organisms and their environment, including how different habitats support biodiversity and ecosystems.
Why the random sample is important in design of experiment?
There are circumstances when it is important and others when it is not. If, for example, you wanted a sample of all schools in the country, it would make more sense to go for cluster sampling. A lot of market research work will require quota sampling. So the supremacy of a random sample is a myth.
Which kind of biologist would most like study interactions between organisms?
*A+*ecologist
