Practice Test 4

At a music festival, there are a total of $400$ attendees. Each attendee is participating in exactly one of three activities: a workshop, a concert, or a jam session. If one of these attendees is selected at random, the probability of selecting an attendee participating in a workshop is $0.55$ and the probability of selecting an attendee participating in a concert is $0.35$. How many attendees are participating in a jam session?

1▮ Mark for Review

Question 69a5c9

▱

Question 1 of 22