1.Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. Correct reading of mass is 3.0 g. On the basis of given data, mark the correct option out of the following statements. Student Readings (i) A 3.01 2.99 (ii)B 3.05 2.951 point(i) Results of both the students are neither accurate nor precise.(ii) Results of student A are both precise and accurate.(iii) Results of student B are neither precise nor accurate.(iv) Results of student B are both precise and accurate.
Question
1.Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. Correct reading of mass is 3.0 g. On the basis of given data, mark the correct option out of the following statements. Student Readings (i) A 3.01 2.99 (ii)B 3.05 2.951 point(i) Results of both the students are neither accurate nor precise.(ii) Results of student A are both precise and accurate.(iii) Results of student B are neither precise nor accurate.(iv) Results of student B are both precise and accurate.
Solution
The correct option is (ii) Results of student A are both precise and accurate.
Here's why:
Precision refers to how close the measurements are to each other, regardless of whether they are close to the actual value. Accuracy, on the other hand, refers to how close a measurement is to the correct value.
Student A's readings are 3.01g and 2.99g. These readings are both very close to the correct value of 3.0g, indicating that they are accurate. They are also very close to each other, indicating that they are precise.
Student B's readings are 3.05g and 2.95g. These readings are not as close to the correct value of 3.0g, indicating that they are not as accurate. They are also further apart from each other than Student A's readings, indicating that they are not as precise.
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