A university conducted a survey of 278 Sophomore, Junior, and Senior undergraduate students regarding satisfaction with student government. Results of the survey are shown in the table by class rank.
| | Sophomore | Junior | Senior | Total |
|---|---|---|---|---|
| Satisfied | 50 | 69 | 62 | 181 |
| Neutral | 16 | 15 | 9 | 40 |
| Not satisfied | 17 | 13 | 27 | 57 |
| Total | 83 | 97 | 98 | 278 |
a. If one survey participant is randomly selected, what is the probability that he or she is a Junior?
The probability that one randomly selected survey participant is a Junior is (Round to three decimal places as needed.)
b. If one survey participant is randomly selected, what is the probability that he or she is satisfied?
The probability that one randomly selected survey participant is satisfied is (Round to three decimal places as needed.)