Question

Why do scientists often take several measurements of the same object, average them together, and use the average value as the measurement?

Answer 1

To minimize the practical errors and improve the accuracy.

Step-by-step explanation:

• Scientists take several measurements and use the average of all the measured values to minimize the practical errors due to unavoidable circumstances and be close to the true value.

• True value is the actual value of a measured parameter without any error, it is the value which is proposed in the design of a certain object.

• Variations may occur in the measurement due to wear and tear, dust and air pressure. It is almost impossible to create ideal surrounding for the measurement procedure.