Final answer:
The probability that a randomly selected passenger has a waiting time less than 0.75 minutes when the waiting times are uniformly distributed between 0 and 7 minutes is approximately 10.71%.
Step-by-step explanation:
To find the probability that a randomly selected passenger has a waiting time less than 0.75 minutes on a subway where the waiting times are uniformly distributed between 0 and 7 minutes, you use the properties of the uniform distribution.
The formula for the probability of the uniform distribution is:
Probability (A < X < B) = (B - A) / (Total length of the distribution)
For this case:
- A = 0 (since we are looking for the probability of less than 0.75 minutes)
- B = 0.75
- Total length of the distribution = 7 minutes
Therefore, the probability that a passenger waits less than 0.75 minutes is:
Probability = (0.75 - 0) / 7
= 0.75 / 7
<= 0.1071 (approx)
So, there is approximately a 10.71% chance that a passenger will wait less than 0.75 minutes.