Which is a real-world example of two planes intersecting?

-a railroad crossing
-a pin in a pin cushion
-a shelf on a wall
or
-none of the above

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.