Question

Juan and Sara each measure the length of their 9.6-inch long math book three times. They record their measurements as shown below. Juan: 9.715 in., 9.622 in., 9.588 in. Sara: 9.62 in., 9.78 in., 9.40 in. Which statement is true? Juan's measurements are more precise, but Sara's measurements are more accurate. Juan's measurements are more accurate, but Sara's measurements are more precise. Sara's measurements are more accurate and more precise. Juan's measurements are more accurate and more precise.

Answer 1

D. Juan's measurements are more accurate and more precise.

Answer 2

Juan's measurements are more accurate and more precise.

Explanation:

Juan has a plus minus of .115 this is by his approximations to the actual legnth of the math book at 9.6 inches, while Sara has a plus minus of .200 which gives her a less accurate and less precise approximation since Juan is actually measurin on up to three figures after the decimal point while Sara only does two.