A new sensor was developed by ABY Inc. that is to be used for their obstacle detection system. During tests involving 250 runs, the following data were acquired: The alarm went off 33 times even if there is no obstacle. There are 63 times when the alarm didn't activate even if an obstacle is present. The alarm went off correctly 62 times.   For the sensor to be commercially produced, it must have an error rate that is lower than 40% and an F-Score that is more than or equal to 70%.   For answers that have decimal places, use four-decimal places.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter4: Equations Of Linear Functions
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A new sensor was developed by ABY Inc. that is to be used for their obstacle detection system. During tests involving 250 runs, the following data were acquired:

  1. The alarm went off 33 times even if there is no obstacle.
  2. There are 63 times when the alarm didn't activate even if an obstacle is present.
  3. The alarm went off correctly 62 times.

 

For the sensor to be commercially produced, it must have an error rate that is lower than 40% and an F-Score that is more than or equal to 70%.

 

For answers that have decimal places, use four-decimal places.

 

1. How many times that the alarm didn't activate correctly? 

2. How many runs have actual obstacles in place? 

3. How often is the sensor correct? 

4. How often is the sensor incorrect? 

5. What is the hit rate of the sensor? 

6. How often does the sensor predict a NO even if it is supposed to be a YES? 

7. What is the CSI of the sensor? 

8. What is the overall accuracy of the sensor? 

9. What is the F-score? 

10. Yes or No. Did the sensor pass the expectations? 

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