A survey of mathematics students at the college revealed that 48% consistently spent at least 1.5 hours on mathematics homework and 52% spent less. Of those who spent at least 1.5 hours on homework, 79% made an A or B in the course. Of those who spent less than 1.5 hours, 26% made an A or B. A student made an A or B in the course. Find the probability that the student spent at least 1.5 hours on homework.
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