Differentiate between accuracy and precision.

Accuracy basically refers to closeness between the measured value to the actual and standard value is known as accuracy. In the mathematics and engineering the accuracy basically tells that the nearest measurement value with reference to the actual true value.

According to the International organization of standardization (ISO), the accuracy referring to the consistent and true results.

Precision basically refers to the value whose results is consistent when the measurement are repeated more than two times. Precision value may be different from one another because of the occurrence of random error in the form of the observational error.