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Bellwork Friday, 8/12/16

posted Aug 12, 2016, 9:22 AM by Chris Buehnerkemper
A survey asked students whether they preferred to read on paper (P) or using electronic devices (E). Based on the survey, if a junior or senior is selected at random, what is the probability that the student prefers to read using an electronic device?
P E Totals
Juniors 50 70 120
Seniors 80 40 120
Totals 130 110 240

Answer choices:



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