Question

Three apprentice tailors (X, Y, and Z) are assigned the task of measuring the seam of a pair of trousers. Each one makes three measurements. The results in inches are X (31.5, 31.6, 31.4); Y (32.8, 32.3, 32.7); Z (31.9, 32.2, 32.1).The true length is 32.0 in. Comment on the precision and the accuracy of each tailor's measurements.

Answer 1

Step-by-step explanation:

Average of reading of X = 31.5

Average of reading of Y = 32.6

Average of reading of Z = 32.06

True measurement is 32.0 so Z's is closest to the true value so Z is most accurate and Y is least accurate.

Since all of them have reading instrument which can read upto 0.1 so the precision of their measuring instrument is equal . Actually their measuring instrument appears to be same.so precision of their measurement is same.