A grocery store receives its delivery each morning at a time that varies uniformly between 5 am 7 A.M. On any given day, what is the probability that the time of delivery will be within 10 minutes of the expected time?

Question

anonymous · Answer

Depends. Are the times in hours or can you include minutes and seconds?

anonymous · Answer

you have to choose either hours or minutes.

anonymous · Answer

If you pick hours you have three possibilities: 5am 6am 7am 
The only time where the time of delivery will be within 10 minutes of the expected time is when you have the same hour because hours are split by 60 minutes, 

Sorry I'm bad with probability but hopefully this helps.