You can sample when carrying out a comprehensive census is not feasible for any reason. It may be because a census would require too many resources (including time), be destructive (eg life span of light bulbs).
sample size refers to the collection of data by only a selected size of te population through the process of sample surveys and sampling methods used in collecting data.
tools for collecting scientific data....one tool for recording,collecting, and analyzing data is a microscope :)))
Field Data
Data gathering in two different samples such that there is matching of the first sample data drawn and a corresponding data value in the second sample.
There is no point in collecting data simply for the sake of collecting data. You need to analyse it: summarise it and use key information from it to make some assessments about the data.
sample size refers to the collection of data by only a selected size of te population through the process of sample surveys and sampling methods used in collecting data.
sampling is important because it helps for researching and also collecting data from a population.
Collecting data
The four main methods for collecting research data are surveys/questionnaires, interviews, observations, and experiments. Each method has its own strengths and weaknesses, and researchers may choose the most appropriate method based on their research questions and objectives.
tools for collecting scientific data....one tool for recording,collecting, and analyzing data is a microscope :)))
collecting data
Collecting Data
Data is neither sample nor population. Data are collected for attributes. These can be for a sample or a population.
collecting data
The reason to refrigerate urine after collecting a sample is to avoid bacteria from forming in it. If a sample of urine will be taken to a lab within an hour of collecting it, then it does not need refrigerated.
a graph
Field Data