Jared is practicing for a golf tournament. His normal driver distance is 250 yards. He hits three balls with his driver, and they travel a distance of 190 yards, 195 yards, and 187 yards. Which of the following is true? a His drives are both accurate and precise. b His drives are precise but not accurate. c His drives are accurate but not precise. d His drives are neither accurate nor precise
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Answered by
7
To answer this question, we need to know the meaning of the twoobtermstwo terms.
1) Accuracy
This is the closeness of the measured value to the standard value.
In our case the measured value is the average value of the drives.
= (187 + 190 + 195) / 3 = 190.67 yards
This value is far from the standard value which is 250 yards and hence it is not accurate.
2) Precision
Closeness of two or more measurements to each other.
For example in our case :
187, 190,and 195 have a difference of 3 yards and 5 yards respectively.
These three measurements are close to each other since the differences are minimal.
Therefore they are precise.
The correct answer from the explanations above is thus :
B. his drives are precise but not accurate.
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3
Answer:
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