please tell me the answer
Precision refers to closeness of findings to reality based on a sample
the standard deviation of the sample decreases.
sample data drawn from one population is completely unrelated to the selection of sample data from the other population.
A non-random selection is one in which all of the people do not have equal chance of being included in the sample.
The sample size determines the accuracy of results in an experiment
You should also include the temperature and pressure when the measurement is taken because these affect the sample measured.
large
Precision refers to closeness of findings to reality based on a sample
the standard deviation of the sample decreases.
When would random sampling not be the best approach to sample selection
With a precision balance.
recruitment and selection process
Blank Sample in Spectrophotometry is used to measure the absorbance of light without sample. It is subtracted from the total absorbance for measurement of Absorbance from a sample's absorbance.
Increasing your sample size might help
These two qualities are quite different. First off, the concept of 'true value' should be accepted. This is the value to which a large number of measurements tend. Preferably measurements made by different experimenters and by different methods. 'Accuracy' is the closeness to which an individual measurement approaches the 'true value'. 'Precision' is closely related to resolution. And one may have a very precise answer, but still be well away from the true value. Resolution is the number of digits in the answer - and may well have an illusory value.
The sample.The sample.The sample.The sample.
sample questionnaire for recruitment and selection