Question

During a thunderstorm at a sports event, a detector activates to let participants know there is lightning in the area so people can seek shelter. The accuracy of the lightning detector is summarized in the table. Lightning detector activates Lightning detector does not activate Row Totals Lightning in area 88% 2% 90% No lightning in area 7% 3% 10% Column Totals 95% 5% 100% What is the ratio of true positives to false positives in this scenario? Round your answer to one decimal place. 0.1 1.5 12.6 44

Answer 1

Answer: its (C) 12.6

Explanation:

basically the first person already explained it

the positives are ( lighting detector activates ) column

the true positive its when the detector activates and there is lightning, so 88%

and false positive its when the detector activates but there's no lightning, so 7%

at the end you just divide 88% / 7%

which is 12.57 and you round it

Answer 2

The answer is 12.6

Explanation:

The ratio is calculated with division.

This means we need to do this equation: 88/7.

The answer to 88/7 is 12.57. However, the question states: Round your answer to one decimal place.

This means we round 12.57 up to 12.6.