Can you do this 2 questions asap

1. The figure shown in the following figure represents a telephone 10 communication link. Switches Oli, i=1,2,...,5 are open or closed and operate independently. The probability that a switch is closed is p. Let A represent the event that switch di is closed. (a) Use A to describe the event that there exists at least one closed path from 1 to 2. (5 points) (b) Compute the probability of there being at least one closed path from 1 to 2. (5 points) a2 03 2 1 05 a 1 04 2. Find the answers to the following two questions: 10 (a) Take out an arbitrary number from 0-10. What is the probability of it 1 (5 points) being evenly divided by 3. (b) Take out two numbers respectively from 050 and 0-100; What is the probability of the event that the first number can be evenly divided by 3 and the 2nd can be evenly divided by 7. (5 points)