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A bell rings every 2 hours a second bell rings every 3 hours and a third bell rings every 4 hours If all 3 bells ring at 9 00 am at what time will all 3 bells next ring-? What is the probability of getting five questions correct on a 20 question multiple choice test? How did experimenting with thousands of pea plants make mendels probabilty calculations more reliable? What is the probability of the spinner landing on a different color each time? What are the features of a binomial distribution?