LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

ECOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why do scientists use sampling techniques to gather population data rather than counting everything?
A
scientists are lazy
B
sampling is more efficient and achievable
C
sampling is more accurate
D
scientists prefer estimations
E
sampling is cheaper
Explanation: 

Detailed explanation-1: -Practicality: In most cases, a population can be too large to collect accurate data – which is not practical. Samples allow researchers to collect data that can be analyzed to provide insights into the entire population. Samples offer a representation of the whole population if sampled accordingly.

Detailed explanation-2: -For most species it’s simply impractical to count every single individual organism. Instead, we use sampling. Sampling is a way of getting a quantitative (numerical) measurement which is an estimate of the actual number.

Detailed explanation-3: -Studies are conducted on samples because it is usually impossible to study the entire population. Conclusions drawn from samples are intended to be generalized to the population, and sometimes to the future as well. The sample must therefore be representative of the population.

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