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 date mark the correct option out of the following statements

Average of readings of student,A=3.01+2.992=3.00Average of reading of student,B=3.05+2.952=3.00Correct reading = 3.00For both the students, average value is close to the correct value. Hence, readings of both are accurate.Readings of student A are close to each other (differ only by 0.02) and also close to the correct reading, hence, readings of A are precise also. But readings of B are not close to each other (differ by 0.1) and hence are not precise.