Mathematics

Christine Mcpherson

5 March, 09:05

Students at University X must have one of four class ranks - freshman, sophomore, junior, or senior. At University X, 35% of the students are freshman and 30% are sophomores. If a University X student is selected at random, the probability that he or she is either a junior or senior isA. 0.35B. 0.65C. 0.70D. 0.895

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