Mathematics, 20.11.2020 01:00 gaby6951

Nancy has classes three days a week. She attends class three days a week 80 percent of the time, two days 15 percent of the time, one day 4 percent of the time and no days 1 percent of the time.
Find the expected value of how often Nancy attends classes every week.

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Nancy has classes three days a week. She attends class three days a week 80 percent of the time, tw...