Question

determining precision, greatest possible error, and margin of error for a measuring tool. the numbers on this ruler represent centimeters. 1.70 cm. what is the precision of this ruler? cm. what is the greatest possible error for the measurement indicated by the arrow? cm. what is the margin of error for the measurement based on where the arrow is pointing on the ruler? cm to cm

Explanation:

Step1: Identify precision

The ruler has markings every 0.1 cm. Precision is the smallest unit of measurement. So precision = 0.1 cm.

Step2: Calculate greatest possible error

The greatest possible error is half of the precision. So greatest possible error = 0.1÷2 = 0.05 cm.

Step3: Determine margin of error

The margin of error is from the measured value - greatest possible error to the measured value + greatest possible error. Given measurement is 1.70 cm. Margin of error is from 1.70 - 0.05 = 1.65 cm to 1.70+ 0.05 = 1.75 cm.

Answer:

0.1
0.05
1.65
1.75