You attend a public health conference for student research. You count 23 posters presented by undergraduate students and 46 posters presented by graduate students. Out of all the posters, 15 posters included research on infant health concerns, 28 focused on young adult health concerns, and 14 discussed health concerns for senior citizens.
You pick a random poster to read. What is the probability you pick a poster presented by a graduate student?
What is the probability you pick a poster discussing young adult health concerns?
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