Probability
Slips of paper marked with the numbers 1,2,3,4, and 5 are placed in a box. After mixing well, two slips are drawn.
1. Probability of the event:
a. both slips are marked with even numbers
b. both slips are marked with odd numbers
c. both slips are marked with the same number
d. one slip is marked with an odd number, the other with an even number