Question

which instrument allows for the most precise measurement of mass? (the measurements are shown for each device.) 0.30 g 4 g 0.157 g 1.4354 g

Explanation:

Step1: Understand precision in measurement

Precision is related to the number of decimal - places. More decimal places mean higher precision.

Step2: Analyze each measurement

The first measurement is $0.30$ g (2 decimal places), the second is $4$ g (0 decimal places), the third is $1.4354$ g (4 decimal places), and the fourth is $0.157$ g (3 decimal places).

Step3: Compare decimal - places

Since $4>3 > 2>0$, the measurement $1.4354$ g has the most decimal places.

Answer:

The instrument with the measurement of $1.4354$ g allows for the most precise measurement of mass.