Question

question 7 of 9
suppose that 2 students count daphnia heartbeats multiple times, resulting in an average heartbeat of...
student a 196.7 ±.05 bpm
student b 200 ± 2 bpm
the more precise work was done by choose... because
choose...

Explanation:

Step1: Understand precision concept

Precision is related to the uncertainty value.

Step2: Compare uncertainty values

Student A has uncertainty of $\pm 0.05$ BPM, Student B has $\pm 2$ BPM.

Step3: Determine more precise work

Smaller uncertainty means more precise work, so Student A.

Answer:

Student A