One hundred patients who had either ankle surgery or knee surgery were asked whether they were satisfied or dissatisfied

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One hundred patients who had either ankle surgery orknee surgery were asked whether they were satisfied or dissatisfiedregarding the result of their treatment. The following tablesummarizes their response.
Surgery
Satisfied
Dissatisfied
Total
ankle
30
15
45
knee
43
12
55
Total
73
27
100
If one person from the 100 patients is selected at random,determine the probability that the person
a)
was satisfied given that the person had kneesurgery.
b)
was dissatisfied given that they had anklesurgery
c)
had knee surgery given that they weredissatisfied