300 students were surveyed. 100 students from 3 different grades were identified and asked if they preferred an iPhone or an Android operated phone. The results were recorded in a 2 way frequency table. Answer each based on the table. Answer probability questions as fractions and decimals exact to three decimals. iphone android 9th grade 40 60 10th grade 55 45 11th grade 70 30 a) what is the probability of randomly lith selecting an 11th grad student given they

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