Precision Vs Accuracy
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Precision vs. Accuracy
Frengie G. Botoy Jagupit NHS, Philippines
Precision Closeness
of a series of measurements to each other
Accuracy Closeness
to an accepted value
Accurate, precise, or both?
accurate •Not accurate •accurate •Not accurate •precise •Not precise •precise
Improvise Beam Balance 1. Weigh nail #1 and 2 one at a time. 2. Record its mass. 3. Make 3 trials in weighing the
Pan Balance 1. Weigh nail #1 and 2 one at a time. 2. Record its mass. 3. Make 3 trials in weighing the nail.
Object Weighed
Trials 1
# 1 nail
2 3 1
# 2 nail
2 3
Mass
Frengie G. Botoy Jagupit NHS, Philippines
Precision Closeness
of a series of measurements to each other
Accuracy Closeness
to an accepted value
Accurate, precise, or both?
accurate •Not accurate •accurate •Not accurate •precise •Not precise •precise
Improvise Beam Balance 1. Weigh nail #1 and 2 one at a time. 2. Record its mass. 3. Make 3 trials in weighing the
Pan Balance 1. Weigh nail #1 and 2 one at a time. 2. Record its mass. 3. Make 3 trials in weighing the nail.
Object Weighed
Trials 1
# 1 nail
2 3 1
# 2 nail
2 3
Mass
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