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Mathematics
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OpenStudy (anonymous):
1. A binomial experiment has 4 trials, with p = 0.3. What is the probability of at least 2 successes? 2. There is a 10% chance that Nila will have to wait for a train to pass as she heads for school. What is the probability that she will not have to wait for a train all 5 days this week? Round your answer to the nearest percent. ____ % 3. Krissy has 3 arrows. The probability of her hitting the target is 2/5. What is the probability that she will get at least one arrow on the target?
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