hard · GMAT Quant
Two independent sensors are used to detect a chemical leak. Sensor 1 has a probability of detection of 0.9, and Sensor 2 has a probability of detection of 0.8.
What is the probability that the leak is detected by at least one sensor?
- 0.72
- 0.98
- 0.85
- 1.70
- 0.02
Sign up free to see the explanation and track your rank →
More GMAT Quant practice
- Including both endpoints, how many distinct integer price points are in this range?
- Which of the following expressions must result in a positive value?
- Which property of arithmetic justifies that first step?
- Which of the following must also be an even integer?
- Which of the following inequalities correctly represents this range?
- Which of the following includes the number 0?
- How many unique meal combinations can a customer create?
- What is the probability that the lightbulb is functional?