Where is the picture? If you could add your picture I’d be glad to help you!! :)
Answer:
0.5 or 50%
Step-by-step explanation:
For any given value of 'x' representing the time between arrivals of two customers. If 0 < x <120, then the cumulative distribution function is:

Therefore, the probability that the time between the arrivals of two customers will be more than 60 seconds is determined by:

The probability is 0.5 or 50%.
Answer:
5 times the square root of 2 or 7.071
Step-by-step explanation:
Hope it helps!