Webster Aquatic Center offers various levels of swimming lessons year-round. The March 2005 Monday and Wednesday evening lessons included instructions from Water Babies through Adults.

The number in each classification is given in the table that follows.

Swim Lesson Types No. of Participants Water Babies 15 Tiny Tots 12 Tadpoles 12 Level 2 15 Level 3 10 Level 4 6 Level 5 2 Level 6 1 Adults 4 Total 77 If one participant is selected at random, find the probability of the following:

a. The participant is in Tiny Tots.

b. The participant is in the Adults lesson.

c. The participant is in a Level 2 to Level 6 lesson.