Answer:
The answer is;
Deviation is the difference between the observed value of a quantity and the true value, residual is the difference between the observed value of a quantity and the mean of the observed values
Explanation:
The error of an observed value is the deviation of the observed value from the true value of a quantity of interest (for example, a population mean).
The residual of an observed value is the difference between the observed value and the estimated value of the quantity of interest (for example, a sample mean)
